Trigonometry Examples

$\cos (\frac{π}{2}) \cos (\frac{π}{4}) + \sin (\frac{π}{2}) \cos (\frac{π}{4}) = \cos (\frac{π}{4})$

Step 1

The left side $0.70710678$ is equal to the right side $0.70710678$ , which means that the given statement is always true.

True