Question 7If cos9α=sinα and 9a<90∘, then the value of tan5α is(A)

1.	Question 7If cos9α=sinα and 9a<90∘, then the value of tan5α is(A) 1√3(B) √3(C) 1(D) 0
Answer» Question 7 If $c o s 9 α = s i n α$ and $9 a < 90^{\circ}$ , then the value of $t a n 5 α$ is (A) $\frac{1}{\sqrt{3}}$ (B) $\sqrt{3}$ (C) $1$ (D) $0$

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