Proving trigonometric identities Calculator

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Difficult Problems

1

Solved example of proving trigonometric identities

$\sin\left(4\right)=2\sin\left(2\right)\cdot \cos\left(2\right)$
2

Calculating the sine of $2$ degrees

$-0.75=2\cdot 0.9167\cos\left(2\right)$
3

Calculating the cosine of $2$ degrees

$-0.75=2\cdot 0.9167-0.4167$
4

Multiply $\frac{11}{6}$ times $-\frac{5}{12}$

$-0.75=-0.7639$
5

$-\frac{3}{4}$ is not equal to $-\frac{55}{72}$

false

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