Trigonometry Examples

$\sin (x) - \tan (x) = 0$

Step 1

Simplify $\sin (x) - \tan (x)$ .

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Step 1.1

Rewrite $\tan (x)$ in terms of sines and cosines.

$\sin (x) - \frac{\sin (x)}{\cos (x)} = 0$

Step 1.2

Convert from $\frac{\sin (x)}{\cos (x)}$ to $\tan (x)$ .

$\sin (x) - \tan (x) = 0$

Step 2

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

$x \approx 0, - 3.14159265, 3.14159265, - 6.284375, 6.284375, - 9.42477796, 9.42477796$

Step 3