Question

find the sum arithmetic progression

0.6 ,1.7 ,2.8,...........up to 11 terms.​

Answer 1

Answer:

a=0.6,n=11,d=1.7-0.6=1.1

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

S11=11/2(1.2+10x1.1)

=11/2(1.2+11)

=11/2(12.2)

=11x6.1

=67.1

Hpe it hlps u

Plsss .ark me as brainliest