Q. Determine the number of different values that ∠x could be based on the given information.sinx=0.78960132
Identify Quadrant:sinx=0.7896 means x is in the first or second quadrant because sine is positive in these quadrants.
Find Reference Angle: To find the reference angle, we use the inverse sine function: x=arcsin(0.7896).
Calculate First Value: Using a calculator, we find the reference angle to be approximately x≈52.06 degrees.
Calculate Second Value: The first value of x is in the first quadrant, so x≈52.06 degrees.
Calculate Second Value: The first value of x is in the first quadrant, so x≈52.06 degrees.The second value of x is in the second quadrant. To find it, we subtract the reference angle from 180 degrees: 180−52.06=127.94 degrees.
Calculate Second Value: The first value of x is in the first quadrant, so x≈52.06 degrees.The second value of x is in the second quadrant. To find it, we subtract the reference angle from 180 degrees: 180−52.06=127.94 degrees.Therefore, there are 2 different values that ∠x could be.