Sin and cosine values of 0?

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โˆ™ 2010-05-22 18:39:51

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sin 0 = 0

cos 0 = 1

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โˆ™ 2010-05-22 18:39:51
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A polynomial of degree zero is a constant term

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Q: Sin and cosine values of 0?
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What is tangent of 0?

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Which is the number whose sine and cosine of an angle is 1?

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I don't believe the graphic calculator has a cosine regression tool, but if you go to STAT, and CALC, there is a sin regression tool. If you hit enter on that then insert your L values, it will come up with a sin regression. The sin regression should be the same as a cosine regression, except that the sin regression should have a different value of C, usually getting rid of the value of C altogether will give you the correct regression.

Why is sine 30 the same as cosine of 60?

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No; those could be three different values, or sometimes two of them might be the same. For example, if the angle is 45 degrees, the values are about... cos:0.707 sin: 0.707 tan: 1 For 45 degrees, the cosine and sine are the same. For 36 degrees, cos:0.809 sin: 0.588 tan: .727

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The Y-Intercept of the cosine function is X = 0, Y = cosine(0) = 1.

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