CBSE BOARD X, asked by Chicago3018, 1 year ago

Forth term is0 prove that 25 term is3times the11term

Answers

Answered by deb15
3
given,4th term is 0
ie a+(4-1)d=0, a+3d=0 ,a=-3d

25term, a+24d=-3d+24d=21d
11term, a+10d=-3d+10d=7d
so 25th term is 3times of 11th term
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