Q2 of 164 Page 41

Find the other trigonometric ratios of the following

Let the third side be p,

By Pythagoras theorem,

⇒ x² + p² = y²

⇒ p² = y² – x²

⇒ p = √y² – x²

Therefore, the other angles are:

cos θ =

tan θ =

cosec θ =

sec θ =

cot θ =

Find the other trigonometric ratios of the following

Find the value of θ, if

(i)

(ii) sin θ = 0

(iii)

(iv)