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 .

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,

In triangle OPA,

The x-coordinate of P corresponds to cosθ.

The period of a unit circle is 2π.

Therefore, the correct option is A.

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70