# Trigonometry Doubt!

Can anyone please provide a solution to these problems?

(1): If $$\dfrac{3 - \tan^2\frac\pi7}{1 -\tan^2\frac\pi7} = \lambda \cos \dfrac\pi7$$, then find $$\lambda$$.

(2): If $$4\sin27^\circ = \sqrt \alpha + \sqrt\beta$$, then find the value of $$(\alpha + \beta - \alpha \beta + 2)^4$$.

Note by Rishabh Tiwari
1 year, 11 months ago

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- 1 year, 11 months ago

@Ashish Siva , @Hung Woei Neoh , @Chinmay Sangawadekar , And all others are invited to solve these problems , Thank you.!

- 1 year, 11 months ago

Requesting help from @Rishabh Cool and @Chew-Seong Cheong. Thanks in advance

- 1 year, 11 months ago