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Chapter 6: Q.7 (page 380)

The__________ function takes as input a real number tthat corresponds to a pointP=x,yon the unit circle and outputs the x-coordinate.

Short Answer

Expert verified

The cosine function takes as input a real number tthat corresponds to a point P=x,yon the unit circle and outputs thex-coordinate.

Step by step solution

01

Given information

The main objective is to fill the blank with an appropriate word in the below statement:

The ______ function takes as input a real number tthat corresponds to a pointP=x,yon the unit circle and outputs thex-coordinate.

02

Explanation

For a point P=x,yon a unit circle, the cosine and sine functions with an input t(a real number)are defined as follows:

cost=xsint=y

Then the cosine function has output as a x-coordinate.

The suitable word that fills the blank is cosine.

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Most popular questions from this chapter

In the problem, sdenotes the length of the arc of a circle of radius r subtended by the central angle 胃. Find the missing quantity. Round answers to three decimal places.

胃=13radian, s=2 feet , r=?

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

sec蟺-csc蟺2

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

5.9蟺2

Use a calculator to find the approximate value of each expression rounded to two decimal places.

sin28掳

Convert each angle in degrees to radians. Express your answer as a multiple of 蟺.

-90掳
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