The second and fifth terms of a geometric sequence are 750 and -6 respectively. Find the common ratio and first term of the sequence.

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Seth Kitchen asked Oct 5, 2023

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The second and fifth terms of a geometric sequence are 750 and -6 respectively. Find the

common ratio and first term of the sequence.

Mathematics
college

Seth Kitchen asked Oct 5, 2023

by Seth Kitchen

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Explanation:

T2= -6

T5=750

ar=-6

ar4=750

both a's cancel each other

we have;

r=-6

r4=750

r4-1(The law of indices) =750

r3=750

r=3√750

r=9.1

Bente answered Oct 12, 2023

by Bente

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