Trigonometry Examples

$\sin (42) \cos (48) + \cos (42) \sin (48)$

Step 1

Evaluate $\sin (42)$ .

$0.6691306 \cos (48) + \cos (42) \sin (48)$

Step 2

Evaluate $\cos (48)$ .

$0.6691306 \cdot 0.6691306 + \cos (42) \sin (48)$

Step 3

Multiply $0.6691306$ by $0.6691306$ .

$0.44773576 + \cos (42) \sin (48)$

Step 4

Evaluate $\cos (42)$ .

$0.44773576 + 0.74314482 \sin (48)$

Step 5

Evaluate $\sin (48)$ .

$0.44773576 + 0.74314482 \cdot 0.74314482$

Step 6

Multiply $0.74314482$ by $0.74314482$ .

$0.44773576 + 0.55226423$

Step 7

Add $0.44773576$ and $0.55226423$ .

$1$

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