Transformations of the sine and cosine are called sinusoidal functions. y = A sin B ( x - h ) + k has amplitude | A |, period 2Pi/| B |, midline y = k and horizontal shift h units. Study the examples in section 6.5. Sine Function Word Problems A word problem involving the trigonometric ratio of sine to calculate the height of a pole Example: A 55ft wire connects a point on the ground to the top of a pole. The cable makes an angle of 60 degrees to the ground. Find the height of the pole to the nearest foot. Show Step-by-step Solutions

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