Question

Find the 15th term of a.p :--7,-4,-1

Answer 1

For given A.P.

a= -7 and d= -4-(-7)=-4+7=3

$tn = a + (n - 1)d$

t15 = -7 + (15 - 1) 3

= -7 + 14 ×3

= -7 + 42

= 35

Hence the value of 15th term is 35 .

Answer 2

Answer:

Step-by-step explanation:

Here a= -7

d= (-4)-(-7) = 3

n=15

A15 = a+(n-1)d

=(-7)+14×3

=-7+42

=35

Hence the 15 term of given ap is 35

HOPE IT HELP YOU !!