Question

Find the sum of 17 terms al
the ayirthmetic
progression 5, 1,-3​

Answer 1

Answer:

a=5,d=1-5=-4,n=17

an=a+(n-1)d

=5+(17-1)(-4)

=5+16(-4)

=5-64

=-59

sum of 17 terms of an A.P is -59

Step-by-step explanation:

I hope this answer may help 6

Answer 2

Answer:

here A.P = 5,1,-3

then a=5,d=2-5=-4

an=a+(n-1) d

a17=5+(17-1)*-4

a17=-5+16*4=-59