1 Answered Questions for the topic Allied angle

Allied Angle

11/28/18

From where does this - ve sign come from?

Let θ=545θ=2702θ+3θ=2702θ=270-3θsin(2θ)=sin(270-3θ)sin(2θ)= -cos(3θ)From where does - ve sign come from? . 270-3θ will be in 2quad where sin is +ve.
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