Trigonometry Examples

$\cos (39) = \frac{7}{14}$

Step 1

The left side $0.77714596$ does not equal to the right side $0.5$ , which means that the given statement is false.

False

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$