0We 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.
