sin(z)*sin(y-x)=0 sin(y)*sin(z-x)=0 sin(x)*sin(z-y)=0   My teacher told me that there were two results, i know that one of solution is x=y=z, but i cannot solve the second one. Can you help me please

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.