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3 years ago

Identify the maximum and minimum values of the function y = 10 cos x in the interval [-2π, 2π].

1 answer:

7 0

We know that the maximum and minimum values of the function y = cos x in the interval [-2π, 2π] are 1 and -1 respectively.

The graph of y = 8 cos x is vertical stretch by a factor of 8 units. Therefore the graph y=cos x, = the maximum and minimum values of the function y = cos x in the interval [-2π, 2π]. So they are 8 and -8 respectively.

max = 8, ∈[−2π,2π]
= Solution
min = −8. ∈[−2π,2π]

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