logx4 = - 2 হলে x = কত?

log_x4 = - 2 হলে x = কত?

A 1/2

B - 1/2

C 2

D - 2

Correct Answer: Option A

দেওয়া আছে,
log_x4 = - 2
⇒ 4 = x^{- 2}
⇒ 4 = 1/x²
⇒ x² = 1/4
⇒ x² = (1/2)²
∴ x = 1/2