Concept explainers
To find: The signs of all the six trigonometric function of an angle
Answer to Problem 43RE
In the first quadrant all the trigonometric function are positive sign.
In the second quadrant all the trigonometric functions are of negative sign except
In the third quadrant all the trigonometric functions are of negative sign except
Explanation of Solution
Given information: The terminal side of the angle
Calculation:
Since, the terminal side of the angle
Therefore
Let’s find the sign of the six trigonometric functions.
In the first quadrant all the trigonometric function are positive sign.
In the second quadrant all the trigonometric functions are of negative sign except
In the third quadrant all the trigonometric functions are of negative sign except
Hence, In the first quadrant all the trigonometric function are positive sign.
In the second quadrant all the trigonometric functions are of negative sign except
In the third quadrant all the trigonometric functions are of negative sign except
Chapter 6 Solutions
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