Question

Please answer if you know
The fourth term of G.P is square of 2nd term and first term is -3 determine
(1)7th term
(2)6th term

Answer 1

Answer:

Step-by-step explanation:

LET  a is the first term and r is common ratio

a4=ar^3

a2=ar

then a4=(a2)²

ar³=(ar²)²=a²r⁴

a²r⁴=ar³

ar=1

a=-3

r=1/a=-1/3

a7=-3*(-1/3)⁶=-3*1/3⁶=-1/3⁵

a6=ar⁵=-3*(-1/3)⁵=1/3⁴