Mathematics: Look at the unit circle shown below. which statement is true? a the x-coordinate of p corresponds to cosθ , which has a period of 2π . b the x-coordinate of p corresponds to cosθ , which has a period of π . c the y-coordinate of p corresponds to cosθ , which has a period of 2π . d the y-coordinate of p corresponds to cosθ , which has a period of π .

15 minutes in each period, b/c 60/4 = 15....

Look at the unit circle shown below. which statement

achaney6733

02.01.2022

The correct option is A.

Step-by-step explanation:

Draw a perpendicular form point P on x-axis.

Radius of unit circle is 1 . It means in triangle OPA

Hypotenuse = OP = 1 units

Adjacent= OA = x

Perpendicular = PA = y

In a circle angled triangle,

$\cos \theta = \frac{adjacent}{hypotenuse}$

In triangle OPA,

$\cos \theta = \frac{x}{1}$

$\cos \theta =x$

The x-coordinate of P corresponds to cosθ.

The period of a unit circle is 2π.

Therefore, the correct option is A.

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