If x - y - z - -2- then show that- sin 2x - sin 2y - sin 2z - 4cos x cos y cos z-

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Derivative of Standard Functions

If x + y + ...

Question

If $x + y + z =$ $\frac{π}{2}$ , then show that, $sin 2 x + sin 2 y + sin 2 z = 4 cos x cos y cos z$ .

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x + y + z = π / 2

sin 2 x + sin 2 y + sin 2 z = 4 cos x cos y cos z

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