Question

if tan 9theta=cot theta.theta=?​

Answer 1

Answer:

Given tan9θ=cotθ and 9θ<90

∘

⟹θ<10

∘

tan9θ=tan(90

∘

−θ)

⟹9θ=90

∘

−θ

⟹10θ=90

∘

⟹θ=9

∘

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

tan 9 a= cot a

tan 9a=tan (90 -a)

9a=90-a

10a=90

a=9

cosec 5×9

cosec 45

√2