1. sin θ - 3 sin θ + 2 = 0 will be true if





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  • By: anil on 05 May 2019 01.58 am
    Expression : $$sin heta - 3sin heta + 2 = 0$$ => $$2sin heta = 2$$ => $$sin heta = 1 = sin 90^{circ}$$ => $$ heta = 90^{circ}$$
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