Question

fourth term of an AP is 0. Prove that its 25th term is triple its 11th term​

Answer 1

T4=a-3d

T25 =a-23d....1

T11=a-10d.....2

so according to the condition.....

t4=0

and we have to prove this triple of t11

then,

a-3d=0....

a=3d.....3

put this in 1

t25=3d-23d+3(3d -10d)....

wolve this then you will find d and put d in equation 3..

mark me on BRAINLIST