Trigonometry Examples

\sin (\frac{π}{8}) = \cos^{2} (\frac{π}{8}) - \sin^{2} (\frac{π}{8})

$\sin (\frac{π}{8}) = \cos^{2} (\frac{π}{8}) - \sin^{2} (\frac{π}{8})$

Step 1

The left side

0.38268343

$0.38268343$ does not equal to the right side

0.70710678

$0.70710678$ , which means that the given statement is false.

False