If x4+y4=18x2y2, then which of the following is/are correct?... | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

If x4+y4=18x2y2, then which of the following is/are correct?

A

log(x²+y²) = 2 log 2 + logx + logy

B

log(x²-y²) = 2 log 2 + logx + logy

C

$log(x²+y²) =\frac{1}{2} log 20+ logx + logy$

D

$log(x²-y²) =\frac{1}{2} log 20+ logx + logy$

Answer

log(x²-y²) = 2 log 2 + logx + logy

Explanation

Solution

The correct option is: B, C