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Chapter 6: Q. 14 (page 435)

Find the exact value of each expression. Do not use a calculator.

sin-40掳sin40掳.

Short Answer

Expert verified

The exact value of the expressionsin-40掳sin40掳is,-1.

Step by step solution

01

Step 1 Given expression is,

sin-40掳sin40掳.

The objective is, we need to find the exact value for the given expression without using the calculator.

02

Step 2 We know that,

sin-胃=sin胃sin-40掳=sin40掳

So, the given expression becomes,

sin-40掳sin40掳=-sin40掳sin40掳=-1

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Most popular questions from this chapter

In problems 13-20, Px,yis the point on the unit circle that corresponds to a real number t. Find the exact values of the six trigonometric functions of t.

223,-13.

Find the amplitude, period, and phase shift of each function. Graph each function. Be sure to label key points. Show at least two periods.

y=2cos3x+蟺2

Convert angle in radian to degree-

蟺3

Use the graph of the function to determine the domain and the range of function

y=21tanx-1

In Problems 4-6convert each angle in radians to degrees.

5.9蟺2
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