Question

1+cotA+tanA*sinA-cosA/sec³A-cosec³A​

Answer 1

ANSWER:-

RHS=

${sin}^{2} a \times {cos}^{2} a$

TRIGONOMETRIC IDENTITY:-

¤ A trigonometric identity is an equation that contains all trigonometric ratios of an angle, and it holds instantly true for a specified level of values of the angle.

IMPORTANT FORMULA :-

1) cos^2 A + sin^2 A = 1.

2) cos^2 A =1 - sin^2 A.

3) sin^2 A =1 - cos^2 A.

4) sec^2 A - tan^2 A = 1.

5) 1 + tan^2 A = sec^2 A.

 6) tan^2 A = sec^2 A – 1.

7) cosec^2 A - cot^2 A = 1.

8) cot^2 A + 1 = cosec^2 A.

9) cot^2 A = cosec^2 A – 1 .

10) sec A - tan A = 1sec A + tan A

11) cosec A - cot A = 1cosec A + cot A