Finding Trigonometric Function Values using a Calculator Objective: Evaluate trigonometric functions using a calculator.

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Presentation transcript:

Finding Trigonometric Function Values using a Calculator Objective: Evaluate trigonometric functions using a calculator

Evaluating trigonometric function When evaluating a trigonometric function with a calculator, you need to set the calculator to the desired mode of measurement (degree or radian). Most calculators do not have keys for cosecant, secant, and cotangent functions. To evaluate these functions, you can use the reciprocal key with their respective reciprocal functions: sine, cosine and tangent. Round the answers to four decimal places.

EX: Use a calculator to evaluate the trigonometric function. DegreesRadians

Evaluating trigonometric function When you are finding the angle measure for the given trigonometric value, you use the inverse function keys on your calculator and give the entire decimal answer for the angle in degree or radian mode.

EX: Use a calculator to find a value of the angle in the first quadrant satisfying each of the following. Degrees Radians