Question

trigonometry




if tanθ=3, then find the value of cos=θ​


please solve​

Answer 1

Answer:

1/2

Step-by-step explanation:

tan theta= 3

, tan theta = tan 60°

, theta = 60°

cos theta = cos 60° = 1/2

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Answer 2

Answer:

C. – 3/√10

Explanation:

According to the question,

Given that, tan θ = 3 and θ lies in third quadrant

⇒ cot θ = 1/3

We know that,

Cosec2θ = 1+cot2θ

Thus, option (C) – 3/√10 is the correct answer.