Precalculus Examples

$\sin (5) \cos (40) + \cos (5) \sin (40)$

Step 1

Simplify each term.

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Step 1.1

Evaluate $\sin (5)$ .

$0.08715574 \cos (40) + \cos (5) \sin (40)$

Step 1.2

Evaluate $\cos (40)$ .

$0.08715574 \cdot 0.76604444 + \cos (5) \sin (40)$

Step 1.3

Multiply $0.08715574$ by $0.76604444$ .

$0.06676517 + \cos (5) \sin (40)$

Step 1.4

Evaluate $\cos (5)$ .

$0.06676517 + 0.99619469 \sin (40)$

Step 1.5

Evaluate $\sin (40)$ .

$0.06676517 + 0.99619469 \cdot 0.6427876$

Step 1.6

Multiply $0.99619469$ by $0.6427876$ .

$0.06676517 + 0.6403416$

Step 2

Add $0.06676517$ and $0.6403416$ .

$0.70710678$