Question

1. Which term of the G.P. :​

Answer 1

Answer:

5th term

Step-by-step explanation:

first term (a) = -10

common ratio (r) = -$\frac{\sqrt{3} }{2}$

so

let the -5/72 be x term

then

Tx = (-10) * (-$\frac{\sqrt{3} }{6}$)^(x-1)

($\frac{-5}{72}$)/-10 = (-$\frac{\sqrt{3} }{6}$)^(x-1)

$\frac{1}{144}$ = (-$\frac{\sqrt{3} }{6}$)^(x-1)

(-$\frac{\sqrt{3} }{6}$)^4 =  (-

so

4 = x - 1

∴ x = 5