Question

the nth term of an ap 5, 2, -1, -4, -7 is

Answer 1

Answer:

a=5

d=2-5

d=-3

An=a+(n-1)d

5+(n-1)-3

5-3n+3

8-3n is the nth term

Answer 2

AnswEr :-

• nth term of the AP is 8 - 3n

Given :-

• An AP as 5, 2, -1, -4, -7.

To Find :-

• nth term of the AP.

SoluTion :-

Here,

• First term, a = 5

• Common difference, d = 2 - 5 = -3

Formula for finding n terms of an AP is :-

» Tn = a + (n - 1)d

→ Tn = 5 + (n - 1) ×(-3)

→ Tn = 5 - 3n + 3

→ Tn = 8 - 3n

Hence, nth term of the AP is 8 - 3n.

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