In mathematics sine is based on trigonometry. The trigonometry is the branch of mathematics it deals with dealings between the angles of a triangle and sides. The sin determines the sides of the quadrilateral and it provisions the length of the residual diagonal. It is nothing but reformulation of Ptolemy’s theorem. Let u see sin calculator.

Let us see sin addition calculator. It one of the basic operations Here we can see sin addition formula proof.

Here BC = 1 AB= cos (α)

AC = sin (α) BD= cos (β)

DC = sin (β) AD = sin (α + β)

Therefore sin (α + β) = sin (α) cos (β) + cos (α) sin (β)

Sin the area of a triangle is half the creation of the elevation and the base, it follows that the area of a triangle is half the creation of any of the two side times sin of the included angle. For the three triangles in the diagram we have,

2Ac= c (d cosb) sin a,

2Ad= d (c cos a) sin b,

2A= cd cos (a + b)

This after cancelling cd gives the addition formula for sin. Following examples are showing Sin values in calculator.

Let us see find sin value in calculator. Following statements are showing briefly explanation.

Find sin 6 value in calculator:

Using sin table sin 6 = .1045

Find sin 6 value in calculator:

Using sin table sin 45 = .7071

**Sin Basic Addition Proof:**Let us see sin addition calculator. It one of the basic operations Here we can see sin addition formula proof.

**Ptolemy’s theorem:**Here BC = 1 AB= cos (α)

AC = sin (α) BD= cos (β)

DC = sin (β) AD = sin (α + β)

Therefore sin (α + β) = sin (α) cos (β) + cos (α) sin (β)

**Sin addition formula: sin (a + b) = sin (a) cos (b) + cos (a) sin (b)**Sin the area of a triangle is half the creation of the elevation and the base, it follows that the area of a triangle is half the creation of any of the two side times sin of the included angle. For the three triangles in the diagram we have,

2Ac= c (d cosb) sin a,

2Ad= d (c cos a) sin b,

2A= cd cos (a + b)

This after cancelling cd gives the addition formula for sin. Following examples are showing Sin values in calculator.

**Sine Calculator:**Let us see find sin value in calculator. Following statements are showing briefly explanation.

**Example 1:**Find sin 6 value in calculator:

**Solution:**Using sin table sin 6 = .1045

**Example 2:**Find sin 6 value in calculator:

**Solution:**Using sin table sin 45 = .7071

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