cos(90-x)=sin(x) - Trigonometry

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

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✓ Trigonometry ✓ sin (x) = cos (90-x) คือหวยล็อค 55 คือมาบ่อย