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Brian McLogan
Tutorial - Given the cosine of an angle determine the double angle for sine, cosine and tangent
Learn how to evaluate the double angle of sine. The value of the sine of double a given angle can be obtained given the value of the sine of the angle. The value of the sine of double a given angle is obtained using the formula sin(2u) = 2(sin u)(cos u). Thus, given the value of the sine of an angle, to obtain the value of the sine of double ...
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