Question

Log(49) = 2log(7) A. 1 B. 2 C. 3

Answer 1

1 → A

using the ' laws of logarithms '

• log( $x^{n}$ ↔ nlogx

• logx = logy  ⇒ x = y

log49 = log7²

log49 = log49  ⇒ 49 = 49 ⇒ 1