Question

sum of the first six terms in geometric sequence
of -3, -6, -12, -24

Answer 1

Answer:

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Answer 2

Answer: Sum of the 1st six terms is (-63)

Step-by-step explanation:

A.Ps:- 3, -6, -12, -24

so, a= (-3)

d= -6-(-3)=-3

n=6

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

=>S6=3(-6+5.-3)

=>S6=3(-21)

=>S6= {-63}