Find exact values of trigonometric functions without using a calculator. Questions with solutions and answers are presented. The trigonometric identities and formulas in this site may be used to solve the questions below. Let us assume that we want to find the exact value of f(x), where f is any of the six trigonometric functions sine, cosine, tangent, cotangent, secant and cosecant. To find the exact value of f(x), we suggest the following steps: Question 1Find the exact value of sin (- Pi / 3). Solution to Question 1:
Question 2Find the exact value of cos (- 390 o). Solution to Question 2:
Question 3Find the exact value of sec (3 Pi / 4). Solution to Question 3:
Question 4Find the exact value of cot ( 840 o). Solution to Question 4:
Question 5Find the exact value of csc (- 7 Pi / 4). Solution to Question 5:
Question 6Find the exact value of cot (121 Pi / 3). Solution to Question 6:
Question 7Find the exact value of sec ( - 3810 o). Solution to Question 7:
More References on Trigonometry Questionstrigonometry questions with solutions and answers.
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