Worksheet: Circular Function Approximation

In this worksheet, we will practice finding the calculator approximation for each circular function value.

Q1:

Use a calculator to approximate, to five decimal places, the value of c o s 𝜃 when 𝜃 = 2 . 2 r a d i a n s .

Q2:

Use a calculator to find s i n 6 . 4 to four decimal places.

Q3:

Use a calculator to approximate, to five decimal places, the value of c o t 𝜃 when 𝜃 = 0 . 7 5 radians.

Q4:

Use a calculator to approximate, to five decimal places, the value of c s c 𝜃 when 𝜃 = 6 radians.

Q5:

Use a calculator to approximate, to five decimal places, the value of s e c 𝜃 when 𝜃 = 2 . 9 radians.

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