Zabia H.
asked • 06/30/21What is the relation between y=sinx and y=cosx ? Explain it in 3-5 sentences..
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1 Expert Answer
If the graph of y = cosx is translated π/2 units to the right, we get the graph of y = sinx. This means that the equation cos(x - π/2) = sinx is an identity. Alternatively, translating the graph of y = sinx π/2 units leftward yields the graph of y = cosx. So, the equation sin(x + π/2) = cosx is an identity as well.
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Philip P.
Cosine is short for complementary sine. The two non-right angles in a right triangle are complementary, meaning they sum to 90 degrees. The cosine of one of the angles is equal to the sine of the other and vice versa.06/30/21