Řešení - Trigonometry

- \sin (89 °)

-\sin(89\degree)

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The period of trigonometric functions is 360 degrees.

$\sin (989 °) = \sin (989 - 360 °)$

Subtracting one integer from another.

$\sin (989 - 360 °) = \sin (629 °)$

The period of trigonometric functions is 360 degrees.

$\sin (629 °) = \sin (629 - 360 °)$

Subtracting one integer from another.

$\sin (629 - 360 °) = \sin (269 °)$

Reflecting the number with respect to 360 degrees.

$\sin (269 °) = \sin (360 - 91 °)$

The period of trigonometric functions is 360 degrees.

$\sin (360 - 91 °) = \sin (360 - 91 - 360 °)$

Removing or simplifying the same numbers on the top and bottom of a fraction.

$\sin (360 - 91 - 360 °) = \sin (- 91 °)$

Computing the sine of a negative angle.

$\sin (- 91 °) = - \sin (91 °)$

Reflecting the number with respect to 360 degrees.

$- \sin (91 °) = - \sin (180 - 89 °)$

Reflecting the sine function with respect to 180 degrees.

$- \sin (180 - 89 °) = - \sin (89 °)$

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Goniometrie propojuje úhly, délky a periodické děje v matematice i fyzice.