Basic Math Examples

$k = 420 \cdot \cos (a + b) - 455 \cdot \cos (a)$

Step 1

Rewrite the equation as $420 \cdot \cos (a + b) - 455 \cdot \cos (a) = k$ .

$420 \cdot \cos (a + b) - 455 \cdot \cos (a) = k$

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