Trigonometric Ratios ( Acute Angles )
Mantra : Pandit Badri Prasad .. Hare hare Bol .
Using this logic , In right ΔABC sine of ∠ A = P / H = BC / AC cosine of ∠ A = B / H = AB / AC tangent of ∠ A = P / B = BC / AB cosecant of ∠ A = 1 / sine of A = AC / BC secant of ∠ A = 1 / cosine of A = AC / AB cotangent of ∠ A = 1 / tangent of A = AB / BC