Question

find the nth term of the A.P. 13, 17, 1, -5, -11 .......using it find its (i) 9th term (ii) 16th term​

Answer 1

Answer:

to find 9 term

a=13,. d=17-13=4

An=a+(n-1)d

A9=13+(9-1)4

A9=13+(8)4

A9=13+32

A9=45

to find 16 term

a=13, d=4

An=a+(n-1)d

A16=13+(16-1)4

A16=13+(15)4

A16=13+60

A16=73