Question

$Evaluate :-$

$\frac{2}{3} ( {cos}^{4} {30}^{°} - {sin}^{4} {45}^{°}) - ( {sin}^{2} {60}^{°} - {sec}^{2} {45}^{°}) + \frac{1}{4} {cot}^{2} {30}^{°}$

Solve this guys...​..​

Answer 1

Answer:

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