SOLUTION: Solve: √(2) sin D cos D = sin D, where D (-180 degrees, 180 degrees)

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Question 964586: Solve: √(2) sin D cos D = sin D, where D (-180 degrees, 180 degrees)
Answer by lwsshak3(11628) About Me  (Show Source):
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Solve: √(2) sin D cos D = sin D, where D (-180 degrees, 180 degrees)
use x for D
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√(2)sinxcosx=sinx
√2cosx=1
cosx=1/√2=√2/2
x=-45˚, 45˚