Question

the first term of an ap is 22 and the common difference is 3 then 49th term is​

Answer 1

ANSWER

Firts term =a=22

Common difference d==−4

Sum =S=64

S=2n(a+a+(n−1)d)

S=2n(2a+(n−1)d)

64=2n(44+(n−1)(−4))

128=n(44−4n+4)

128=n(48−4n)

128=48n−4n2

4n2−48n+128=0

n2−12n+32=0

n=2+12±122−4×32

Answer 2

Step-by-step explanation:

49th term is 166.

mark me as brilliant bro please