Concept explainers
To calculate:The sine, cosine and the tangent of the given angle without using a calculator.
Answer to Problem 82CR
The sine, cosine and the tangent of the angle are
Explanation of Solution
Given information:The given angle is
Formula used:
The following trigonometric formula are used
Calculation:
The given angle is
It can be written as
So the sine of the angle in equation (1) will be
The cosine of the angle in equation (1) will be
The tangent of the angle in equation (1) will be
Hence the sine, cosine and the tangent of the angle are
Chapter 4 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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