Math, asked by alen1214, 6 months ago

if cos 9Φ=sinΦ and 9Φ<90°, then the value of tan 5Φ is

Answers

Answered by gurleenbhullar903

1

Step-by-step explanation:

cos9θ=sinθ=cos(90

∘

−θ)

9θ=90

∘

−θ

θ=9

∘

tan5θ=tan45

∘

=1

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