Question

Find the sum of first 25 terms of the AP 30, 26, 22, ....

Answer 1

Answer:

The following A. P is 30,26,22,...

a=t1=30, A2= 26, A3=22

d=t2-t1

=26-30

=--4

therefore, d=-4

to find t25=?

therefore, tn=a+(n-1) d

t25=30+(25-1) -4

=30+(24)-4

=30-96

-66

therefore, 25th term of an A.P is -66

Answer 2

Answer:

hopes this helps you

MARK ME AS BRAINLIEST PLEASE