The value of (\cos^2 , 48^{\circ} - \sin^2 12^{\circ}) is | Mathematics | SolveeIt | Solveeit

Today, August 23

Question

The value of $\cos^2 \, 48^{\circ} - \sin^2 12^{\circ}$ is

A

$\frac{\sqrt{5} + 1}{8}$

B

$\frac{\sqrt{5} - 1}{8}$

C

$\frac{\sqrt{5} + 1}{5}$

D

$\frac{\sqrt{5} + 1}{ 2\sqrt{2}}$

Answer

$\frac{\sqrt{5} + 1}{8}$

Explanation

Solution

Answer (a) $\frac{\sqrt{5} + 1}{8}$