Concept explainers
To calculate: The value of trigonometric functions
Answer to Problem 23CT
The solutions for the trigonometric functions are
Explanation of Solution
Given information:
A point (1,-2) in a quadratic plan at an angle u anticlockwise with the x-axis.
Formula Used:
The trigonometric formulas are:
Calculation:
From the given figure the adjacent side (A) is 1 and the opposite side (O) is equal to 2.
Find hypotenuse (H), use Pythagoras theorem.
Know that the
Know that the trigonometric identity
Know that the trigonometric identity
Find,
Find,
Find,
Hence, the solutions of the trigonometric functions are
Chapter 5 Solutions
Precalculus with Limits: A Graphing Approach
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