Question

for an a.p 6,4,2,...., find s 10

Answer 1

Hey mate,....

a = 6

d = -2

s10 = n/2 (2a + n-1 d)

=10/2 (2*6+10-1 *-2)

= 5 ( 12+ 9*-2 )

= 5 ( 12-18)

= 5 * -6

=-30

Answer 2

HEYA MATE !!

hope it helps

pls mark it as the brainliest answer :)