Trigonometry Examples

$x = 4 \cos (35 °)$

Step 1

Simplify $4 \cos (35 °)$ .

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Step 1.1

Evaluate $\cos (35 °)$ .

$x = 4 \cdot 0.81915204$

Step 1.2

Multiply $4$ by $0.81915204$ .

$x = 3.27660817$

Step 2

Graph each side of the equation. The solution is the x-value of the point of intersection.

$x \approx - 3.61476882$

Step 3