xy = 2 এবং xy2 = 8 হলে x = ?

xy = 2 এবং xy² = 8 হলে x = ?

A 1/3

B 1/4

C 1/2

D 1/5

Correct Answer: Option C

xy = 2 ............ (1)
xy² = 8 ............(2)

(2)/(1) হতে পাই,
(xy²)/(xy) = 8/2
∴ y = 4

এখন,
xy = 2
⇒ x = 2/y
⇒ x = 2/4
∴ x = 1/2