Question

find the maximum and minimum value of y=4-cos​

Answer 1

The question is lacking appropriate information

The question should be Y=4-cos∅

The Maximum of Y is when cos∅ is minimum and minimum of cos∅is -1

so max y=4-(-1)=5

and minimum of y Exists at cos∅ maximum and max of cos∅ is 1

min of y is 4-(1)=3

Answer 2

Answer:

maximum value 5 and minimum value 3.

To Find:

maximum and minimum value of y = 4 - cosθ

Step-by-step explanation:

We have y = 4 - cosθ

The maximum and minimum value of y depends upon the maximum and minimum value.

we know that,

• maximum value of cosθ is 1 when θ = 0° and 360°.
• minimum value of cosθ is -1 when θ = 180°.

Therefore,

• maximum value of y is

        y = 4 + 1 = 5

• minimum value of y is

        y = 4 - 1 = 3.

Hence, maximum and minimum value of y are 5 and 3 respectively.

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