Cos of angle A
Side adjacent to angle A / Hypotenuse
Cot of angle A
side adjacent to angle A / side opposite to angle A
The sec of angle A
Hypotenuse / side adjacent to angle A
Tangent of angle A
Side opposite to angle A / side adjacent to angle A
Sin of angle A
Side opposite to angle A / Hypotenuse
The ratios cosec A, sec A and cot A are ____________ of the ratios sin A, cos A and tan A.
The reciprocals
Pythagoras theorem
For hypotenuse - c = root of a^2 + b^2
For sides - a or b = root of c^2 - b or a^2
Cosec of angle A
Hypotenuse / Side opposite to angle A