Aisha C.
asked 12/20/18
find all solutions of the equation in the interval [0,2pi) cos˄2 x =2+2sinx
Mark M.
answered 12/20/18
Mathematics Teacher - NCLB Highly Qualified
cos2 x = 2 + 2sin x
1 - sin2 x = 2 + 2sin x
0 = sin2 x + 2sin x + 1
Use the Zero Product Rule to determine the value of x.
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