Web Analytics

Verified Answer :

cotθ=1/tanθ=1/(sinθ/cosθ)=cosθ/sinθ <--- trig identity
secθ=1/cosθ <--- trig identity
cotθsecθ=(cosθ/sinθ)(1/cosθ)
cosθ/(sinθcosθ) <--- combine denominators
1/sinθ <--- cancel out the cosθ
csc=1/sinθ <--- trig identity
∴cotθ*secθ=cscθ

Answer:

Therefore, Verify.

Step-by-step explanation:

Given : cot θ ∙ sec θ = csc θ

To find : Verify the identity.

Solution : We have given

cot θ ∙ sec θ = csc θ

By the trigonometric identity : cot θ = \(\frac{cos(theta)}{sin(theta)}\) .

sec θ = \(\frac{1}{cos(theta)}\).

Then ,

Taking left hand side

cot θ ∙ sec θ

\(\frac{cos(theta)}{sin(theta)}\) *  \(\frac{1}{cos(theta)}\)

\(\frac{1}{sin(theta)}\)

csc θ = right hand side.

Hence verify.

Therefore, Verify.