Question

cot square π/6-2cos square π/3-sec square π/4-4sin square π/6 find the vale​

Answer 1

Answer:

$\cot {}^{2} \frac{\pi}{6} - 2 \cos {}^{2} \frac{\pi}{3} - \sec {}^{2} \frac{\pi}{4} - 4 \sin {}^{2} \frac{\pi}{6}$

$\cot {}^{2}30 - 2 \cos {}^{2}60 - \sec {}^{2}45 - 4 \sin {}^{2} 30$

$(\sqrt{3} ) {}^{2} - 2 \times ( \frac{1}{2} ) {}^{2} - ( \sqrt{2} ) {}^{2} - 4 \times ( \frac{1}{2} ) {}^{2}$

$3 \: - \: \frac{1}{2} - 2 \: - 4 \times \frac{1}{4}$

$3 - \frac{1}{2} - 2 - 1$

$\frac{6 - 1 - 4 - 2}{2}$

$- \frac{1}{2}$

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