1-1/2+1/4-1/8...........find the 15th term
Answers
Answered by
5
Given GP series 1,-1/2,1/4,-1/8
a=1
r = -1/2/1
r = -1/2
nth termof GP=ar to the power n-1
nth term=1×(-1/2)power n-1
15th term=ar power14
=1×(-1/2)power14
a=1
r = -1/2/1
r = -1/2
nth termof GP=ar to the power n-1
nth term=1×(-1/2)power n-1
15th term=ar power14
=1×(-1/2)power14
okaps:
ohh yeah
I forget that
oops
but as per the ques we can see that all even denominators have negative sign,but ans is coming +
Not all
positive is correct
oh yeah
got it
thnx
ur wlcm frnd
Similar questions