Math, asked by shaili3, 1 year ago

Derive the formula for finding the sum of first n terms of an AP.....

Answers

Answered by Anonymous
0
the sum is n/2+(2a+{n-1}d).

shaili3: I know the formula but in question they are asking to derive it...
Answered by prikanka
1
To find the first n terms of an AP
S=n/2 (2a +(n-1)d)

shaili3: I know the formula but in question they are asking to derive it..
prikanka: it's deprivation is given in ncert book pg 108
shaili3: Okkkkk thank you very much
prikanka: welcm
Similar questions