What is the value of sine trigonometric function?

sin0=sin0 =0，sin 15 =0.259，sin30 = 1/2 .

Memory formula 1

Thirty, four, five, sixty degrees, trigonometric functions are all firmly remembered.

The denominator chord bisector is three, and the numerator should be added with a root sign.

One, two, three, three, two, one, three, nine, twenty-seven

Tangent and sine increase, cosine function decreases.

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Trigonometric functions have important applications in complex numbers. Trigonometric function is also a common tool in physics.

It has six basic functions.

Function name sine cosine tangent cotangent secant cotangent

Symbol sin cos tan cot second csc

Sine function sin (a) = a/c.

Cosine function cos (a) = b/c.

Tangent function tan (a) = a/b.

Cotangent function cot (a) = b/a.

Where a is the opposite side, b is the adjacent side and c is the hypotenuse.