Question

introduction to inverse trigonometric functions
trigonometric
functions
y = sin^{-1}(x) = arcsin(x)
y = cos^{-1}(x) = arccos(x)
y = tan^{-1}(x) = arctan(x)
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use your calculator to evaluate cos^{-1}(0.7) to at least 3 decimal places. give the answer in radians.

Explanation:

Step1: Set the calculator to radian mode

Ensure the calculator is in radian mode as the answer is required in radians.

Step2: Calculate \( \cos^{-1}(0.7) \)

Using a scientific calculator, input \( \cos^{-1}(0.7) \).

Answer:

\( 0.795 \) (rounded to three decimal places)