Questions Answered

kdeedee02:
Find exact value of the expression
find sin (2theta) , when cos(theta) =4/5 and theta lies in quadrant IV
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 updated one year ago
 2 replies
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kdeedee02:
find all solutions of the equation
cos ( theta)  1 =0
 updated one year ago
 15 replies
 3 Medals

kdeedee02:
find the exact value by using a difference identity for sin15degrees
 updated one year ago
 5 replies
 1 Medal

kdeedee02:
solve the equation on the interval (0,2pie) for sin4theta =squareroot 3/2
 updated one year ago
 3 replies
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