Trigonometry Examples

$\sin (50) \cos (40) + \cos (50) \sin (40)$

Step 1

Simplify each term.

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Step 1.1

Evaluate $\sin (50)$ .

$0.76604444 \cos (40) + \cos (50) \sin (40)$

Step 1.2

Evaluate $\cos (40)$ .

$0.76604444 \cdot 0.76604444 + \cos (50) \sin (40)$

Step 1.3

Multiply $0.76604444$ by $0.76604444$ .

$0.58682408 + \cos (50) \sin (40)$

Step 1.4

Evaluate $\cos (50)$ .

$0.58682408 + 0.6427876 \sin (40)$

Step 1.5

Evaluate $\sin (40)$ .

$0.58682408 + 0.6427876 \cdot 0.6427876$

Step 1.6

Multiply $0.6427876$ by $0.6427876$ .

$0.58682408 + 0.41317591$

Step 2

Add $0.58682408$ and $0.41317591$ .

$1$