Q2 of 48 Page 84

Express the trigonometric ratios sin θ, sec θ, tan θ in terms of cot θ.

Using the identity: cosec2 θ – cot2 θ = 1


⇒ cosec θ =


sin θ =


⇒ sin θ =



⇒


⇒ sec θ =


⇒ sec θ =


tan θ =


More from this chapter

All 48 →
1

Express all the trigonometric ratios ∠θ in terms of sec θ.

 3

Prove the following with the help of identities:

cos2θ + cos2θ.cot2θ = cot2θ

 4

Prove the following with the help of identities:

sec θ (1 – sin θ) (sec θ + tan θ) = 1

 5

Prove the following with the help of identities:

cosec2θ + sec2θ = cosec2θ sec2θ