Question

Please Help....

Answer 1

Answer:

This is the answers for edge 2020. Hope this finds you well!

Answer 2

Step-by-step explanation:

The cartesian graph consists of x and y axes, while the cosine graph is made of $\theta$ and y axes. This means that each value of x has to be converted in $\theta$ to represent a corresponding point in cosine graph.

Thus,

x = cos $\theta$

or,

$\theta =cos^{-1}(x)$

For point (1, 0)

$\theta =cos^{-1}(1)\\\\\theta =0^o$

y = cos $\theta$

y = cos(0)

y = 1

Point in cosine graph = (0, 1)

For point (0, 1)

$\theta =cos^{-1}(0)\\\\\theta =90^o$

y = cos $\theta$

y = cos(90)

y = 0

Point in cosine graph = (90, 0)

For point (-1, 0)

$\theta =cos^{-1}(-1)\\\\\theta =180^o$

y = cos $\theta$

y = cos(180)

y = -1

Point in cosine graph = (180, -1)

For point (0, -1)

$\theta =cos^{-1}(0)\\\\\theta =90$

y = cos $\theta$

y = cos(90)

y = 0

Point in cosine graph = (90, 0)