Asked by kelly

solve 12cos^2X=8+13sinX between the window of -360 ¡Ü x ¡Ü 360

Answers

Answered by bobpursley
change cos^2 to 1-sin^2, then arrange the terms as a quadratic, and factor.
Answered by kelly
so would it be (3sinx-1)(4sinx+4)=0?
Answered by bobpursley
then solve for x...
Answered by kelly
after i solve for x then that is my answer? so x=1/3,-1
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