સાબિત કરો કે $3 \sin \frac{\pi}{6} \sec \frac{\pi}{3} - 4 \sin \frac{5 \pi}{6} \cot \frac{\pi}{4} = 1$.

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(N/A) આપણી પાસે $L.H.S. = 3 \sin \frac{\pi}{6} \sec \frac{\pi}{3} - 4 \sin \frac{5 \pi}{6} \cot \frac{\pi}{4}$ છે.
કિંમતો મૂકતા $\sin \frac{\pi}{6} = \frac{1}{2}$,$\sec \frac{\pi}{3} = 2$,$\sin \frac{5 \pi}{6} = \sin(\pi - \frac{\pi}{6}) = \sin \frac{\pi}{6} = \frac{1}{2}$,અને $\cot \frac{\pi}{4} = 1$:
$L.H.S. = 3 \times \frac{1}{2} \times 2 - 4 \times \frac{1}{2} \times 1$
$L.H.S. = 3 - 2 = 1$
આમ,$L.H.S. = R.H.S. = 1$,તેથી સાબિત થાય છે.

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