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# Trigonometry

S
Sameer Khan
14/08/2020 0 0

We try to understand what the physical meaning of trigonometry is? Trigonometry is nothing, but it is the relationship between the sides and angles of a right-angle triangle.

For example - In a right angle triangle ABC, where <B=90° and AC is the hypotenuse then,

SIN A = Perpendicular/Hypotenuse

SIN A = BC/AC

Now, take the inverse of both side,

A = 1/SIN (BC/AC)  ..…........(1)

From equation.….(1)  you can see that Angle A of a right angle triangle ABC  is nothing but the sin inverse of its sides.

Note- Perpendicular and Base of a right angle right are not fixed; it changes according to the choice of angle.

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