Question
Use a graphing utility to approximate the solutions (to three decimal places) of the equation in the interval $[0,2 \pi)$.$$4 \sin ^{3} x+2 \sin ^{2} x-2 \sin x-1=0$$
Step 1
Make sure the calculator is set to radian mode since we are dealing with trigonometric functions. The function to be inputted is $4 \sin ^{3} x+2 \sin ^{2} x-2 \sin x-1=0$. Show more…
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