Trigonometry Examples

$\cos (\frac{π}{4} \cdot \cos (\frac{π}{6})) = \frac{1}{2} \cdot (\sec (\frac{π}{12}) + \cos (\frac{5 π}{12}))$

Step 1

The left side $0.77746281$ does not equal to the right side $0.64704761$ , which means that the given statement is false.

False