Please help? Solve the equation fro exact solutions over the interval (0degrees, 360 degrees)

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Answer 1 · 2018-03-02T18:43:06

1.

$theta=240^@,300^@$

2.

$theta=120^@,240^@$

1.

$3sin(theta)=sin(theta)-sqrt(3)$

$=>2sin(theta)=-sqrt(3)$

$=>sin(theta)=-sqrt(3)/2$

$=>theta=240^@,300^@$

2.

$5cos(theta)=3cos(theta)-1$

$=>2cos(theta)=-1$

$=>cos(theta)=-1/2$

$=>theta=120^@,240^@$