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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
4 months ago

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Please help me solve these problems @Pi Han Goh , @Calvin Lin sir please help , also atleast state if it cannot be solved or it's incorrect ...Thanks in advance .@Hung Woei Neoh thanx buddy. Rishabh Tiwari · 4 months ago

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@Ashish Siva , @Hung Woei Neoh , @Chinmay Sangawadekar , And all others are invited to solve these problems , Thank you.! Rishabh Tiwari · 4 months ago

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@Rishabh Tiwari Requesting help from @Rishabh Cool and @Chew-Seong Cheong. Thanks in advance Hung Woei Neoh · 4 months ago

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