Question

4 tan 60 see 30 + sin 31 see 59 + cot 59 cot 31 sin square 30 - tan square 45

Answer 1

Have a look on this question......it's answer is similar as in attachment.

Evaluate 4tan60° sec30° + sin 31°sec59° + cot59°cot 31°/8sin^2 30° - tan^2 45°

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