D
Doesitmatter?
Sphinx
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it will be d not 2d between two consecutive terms
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it will be d not 2d between two consecutive terms
did not see the full solution but the d is correct so answer is too smart curry batman
It will be d not 2d. Think of a, a+d. The difference between consecutive terms if always d. I mean, you could let k=2d and then do some substitution and try make it simpler if thatβs what youβve done, would workI am telling the difference between two consecutive terms
idk why most of the pyqs are lengthy the basics arent that lengthy but the standard or sample paper are the question u solved was 3 mark and the op was 2Atleast see the attachment bro
I have taken a different AP than yours
To make it easy nothing else
This method is kinda lengthy
did not see the full solution but the d is correct so answer is too smart curry batman
Yeah that's what i have done brotherIt will be d not 2d. Think of a, a+d. The difference between consecutive terms if always d. I mean, you could let k=2d and then do some substitution and try make it simpler if thatβs what youβve done, would work
bro, go kill yourself pls, youre reposting the same image over and over again, go try put this energy into getting your family to love you again
idk why most of the pyqs are lengthy the basics arent that lengthy but the standard or sample paper are the question u solved was 3 mark and the op was 2
very cool my man, would definitely work, simplifies it, i wanted to give OP a more simple way of doing it without giving new variables, can be confusing for some. well done spotting that, i am sorry for not reading your images but id have to squint to see that tiny pic on this laptop lmfaoYeah that's what i have done brother
nigga i have chatgpt but the explainations arent that clear for some questionsWe are given that the sum of the first mm terms of an arithmetic progression (AP) is the same as the sum of the first nn terms. We need to show that the sum of the first (m+n)(m + n) terms is zero.
Let the first term of the AP be aa, and the common difference be dd. The sum of the first kk terms of an AP is given by the formula:
Sk=k2(2a+(kβ1)d)S_k = \frac{k}{2} \left( 2a + (k - 1) d \right)
Step 1: Expression for the sum of the first mm and nn terms
The sum of the first mm terms is:
Sm=m2(2a+(mβ1)d)S_m = \frac{m}{2} \left( 2a + (m - 1) d \right)
The sum of the first nn terms is:
Sn=n2(2a+(nβ1)d)S_n = \frac{n}{2} \left( 2a + (n - 1) d \right)
Step 2: Given condition
We are told that the sum of the first mm terms is equal to the sum of the first nn terms:
Sm=SnS_m = S_n
Substitute the expressions for SmS_m and SnS_n:
m2(2a+(mβ1)d)=n2(2a+(nβ1)d)\frac{m}{2} \left( 2a + (m - 1) d \right) = \frac{n}{2} \left( 2a + (n - 1) d \right)
Multiply both sides of the equation by 2 to simplify:
m(2a+(mβ1)d)=n(2a+(nβ1)d)m \left( 2a + (m - 1) d \right) = n \left( 2a + (n - 1) d \right)
Step 3: Expand both sides
Expanding both sides:
m(2a+(mβ1)d)=m(2a)+m(mβ1)dm \left( 2a + (m - 1) d \right) = m(2a) + m(m - 1)dn(2a+(nβ1)d)=n(2a)+n(nβ1)dn \left( 2a + (n - 1) d \right) = n(2a) + n(n - 1)d
This gives:
2am+m(mβ1)d=2an+n(nβ1)d2am + m(m - 1)d = 2an + n(n - 1)d
Step 4: Simplify the equation
Rearrange the terms:
2amβ2an=n(nβ1)dβm(mβ1)d2am - 2an = n(n - 1)d - m(m - 1)d
Factor out common terms:
2a(mβn)=d[n(nβ1)βm(mβ1)]2a(m - n) = d \left[ n(n - 1) - m(m - 1) \right]
Step 5: Simplifying the right-hand side
Simplify the expression inside the brackets:
n(nβ1)βm(mβ1)=n2βnβm2+mn(n - 1) - m(m - 1) = n^2 - n - m^2 + m
This can be rewritten as:
n2βm2β(nβm)n^2 - m^2 - (n - m)
Thus, the equation becomes:
2a(mβn)=d(n2βm2β(nβm))2a(m - n) = d \left( n^2 - m^2 - (n - m) \right)
Step 6: Sum of the first (m+n)(m + n) terms
Now, we want to find the sum of the first m+nm + n terms. Using the sum formula for an AP:
Sm+n=m+n2(2a+(m+nβ1)d)S_{m + n} = \frac{m + n}{2} \left( 2a + (m + n - 1) d \right)
We know that the sum of the first mm terms equals the sum of the first nn terms, and by following through with the steps above, we find that the sum of the first (m+n)(m + n) terms must be zero. Thus:
Sm+n=0S_{m + n} = 0
This completes the proof.
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what the fuck bud.
Nvm man i tried it too tbh but it was too lengthy and he wouldn't be able to solve a quadratic ig that's the reason i tried to simplify itvery cool my man, would definitely work, simplifies it, i wanted to give OP a more simple way of doing it without giving new variables, can be confusing for some. well done spotting that, i am sorry for not reading your images but id have to squint to see that tiny pic on this laptop lmfao
10 th12th class?
you could solve the quadratic since you had a in terms of d, i imagine youd get a quadratic involving both. granted it would be lenthy, still worksNvm man i tried it too tbh but it was too lengthy and he wouldn't be able to solve a quadratic ig that's the reason i tried to simplify it
I would have solved it but he is preparing for an exam so there is a time limit soyou could solve the quadratic since you had a in terms of d, i imagine youd get a quadratic involving both. granted it would be lenthy, still works
fair enough, always good to spot a trick like that, saves a bunch of timeI would have solved it but he is preparing for an exam so there is a time limit so
I found out when i was in same class as himfair enough, always good to spot a trick like that, saves a bunch of time
nice man, im not sure how that translates to the UK grading system and class but thats very impressive from the looks of it, keep it up manI found out when i was in same class as him
This was my result
id have used the quadratic equation anyway i took diff values to see if i could solve it myselfNvm man i tried it too tbh but it was too lengthy and he wouldn't be able to solve a quadratic ig that's the reason i tried to simplify it
It will take you decades nigga just remember the method i wroteid have used the quadratic equation anyway i took diff values to see if i could solve it myself
It is 95% of the full marks that's 500nice man, im not sure how that translates to the UK grading system and class but thats very impressive from the looks of it, keep it up man
Yeah brother anything to compensate for my facenice man, im not sure how that translates to the UK grading system and class but thats very impressive from the looks of it, keep it up man
well done manIt is 95% of the full marks that's 500
lmfao, reality is your face will always be what is cared for most outside of a uni application RIPYeah brother anything to compensate for my face
Chat gpt tetardnigga does that question look like uni
I am the guy in my avi do i look too subhuman?lmfao, reality is your face will always be what is cared for most outside of a uni application RIP
nigger, on the left you look like an indian ishowspeedI am the guy in my avi do i look too subhuman?
I have cracked some science and maths Olympiads
View attachment 3417866
nigger, on the left you look like an indian ishowspeed
works everytime?It will take you decades nigga just remember the method i wrote
Yeah niggaworks everytime?
You can easiy fix ur faceI am the guy in my avi do i look too subhuman?
I have cracked some science and maths Olympiads
View attachment 3417866
I can't do anything now tbh maybe gymcellingYou can easiy fix ur face
Fix ur skin, retinoids.I can't do anything now tbh maybe gymcelling
I have already got lean i looked worse than this a year ago
Yeah i am on tret nowFix ur skin, retinoids.
LMAOOOOOOOOOnigger, on the left you look like an indian ishowspeed
nigger, on the left you look like an indian ishowspeed
No one on this forum has the iq to do this type of mathIf the sum of first m terms of an AP is the same as
the sum of its first n terms, show that the sum of its
first (m + n) terms is zero.
its easy but lengthy
What kinda retarded school u inJfl idfk what any of this means
Im in what would be 10th grade in american terms
it was a lengthy one and he made a calculation errorWhy does a maths question have 4 pages
2people could solve itNo one on this forum has the iq to do this type of math
IdkWhat kinda retarded school u in
I definitely canβt jflit was a lengthy one and he made a calculation error
2people could solve it
how old are u try solving it use the formula sn is n/2(2a+(n-1)d)I definitely canβt jfl