solve for what FOUR values of theta satisfy the following equation: sin(2θ)= -0.8256   on   0° < θ < 360° express answers in degrees to two decimal places.



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Posted on (Answer #1)

Solve `sin(2theta)=-0.8256` on `0^@<theta<360^@`




Since we are using `2theta` , to solve for `theta` we can use the reference angle `55.65^@` on the interval `0<2theta<720^@` , with the solutions we seek in the third and fourth quadrants.


To find `theta` we divide each by 2.





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