Asked by Emeka
If the second and fourth terms of G.p are 8and 32,what is the sum off the first 4 terms
Answers
Answered by
Steve
Clearly a=4 and r=2
S4 = 4(2^4-1)/(2-1) = 4*15 = 60
check:
4+8+16+32 = 60
S4 = 4(2^4-1)/(2-1) = 4*15 = 60
check:
4+8+16+32 = 60
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