Grade 11Algebra
If Sn denotes the sum of first n terms of an A.P. n> such that Sm/Sn =m2/n2 , then am/an = ?
If Sn denotes the sum of first n terms of an A.P. n> such that Sm/Sn =m2/n2 , then am/an = ?
2 Answers
Nishant Vora
Approved Tutor Answer9 Years ago
moumi roy
SM/SN=M2/N2
{M(2a+(M-1)d)/2}/{N(2a+(N-1)d)/2}=M2/N2
(2a+(M-1)d)/(2a+(N-1)d)=M/N
putting M=2M-1 &N=2N-1
2(a+(M-1)d)/2(a+(N-1)d)=(2M-1)/(2N-1)
am/an=(2M-1)/(2N-1)---ans
Other Related Questions on algebra
How do you write “the product of 18 and q” as an algebraic expression?
How do you write “the product of 18 and q” as an algebraic expression?
algebra
Last Activity: 2 Years ago