Question

Q. cos(θ) + cos(-θ)/ tanθ + cotθ

please solve this question ​

Answer 1

Answer:

0

Step-by-step explanation:

cos(θ) + cos(-θ) = cos(θ) - cos(θ) = 0

Hope it helps.

Thank you.

Answer 2

Answer:

L.H.S = tan2 θ – (1/cos2 θ) + 1

= tan2 θ - sec2 θ + 1 [since, 1/cos θ = sec θ]

= tan2 θ – (1 + tan2 θ) +1 [since, sec2 θ = 1 + tan2 θ]

= tan2 θ – 1 – tan2 θ + 1

= 0 = R.H.S. hence Proved

Step-by-step explanation:

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