Sine is 45 degrees, sin 45

Sine 45 degrees, or sine, pi divided on 4 (four), equal unit, divided by a root from 2 (two). Simpler all sin to represent 45 degrees on a picture:

sin 45

In decimal fractions value of sine 45 degrees will be equal zero whole seven thousands seventy one tenthousandth:

sin 45° = sin π/4 = 0,7071

Anymore about trigonometric equalities of sine of corner alpha it is possible to look on a page, sanctified to the sine 30 degrees. I hope, you will understand, what numbers change in equalities, and what letters and symbols remain unchanging. You will compare the portraits of sines on pictures, value of corners and value of sines of these corners.

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