sin(90-x)=cos(x) - Trigonometry
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Sine and cosine are cofunctions of each other. The sine of 90-x should be the same as the cosine of x. This implies that graph of cosine function is the same as shifting the graph of the sine
sin(90-x)=cos(x) - Trigonometry
sin(90-x)=cos(x) - Trigonometry