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Andrej [43]
3 years ago
8

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

Mathematics
2 answers:
vazorg [7]3 years ago
4 0
Maximum values:

(-2 pi, 10), (0, 10),(2 pi, 10),

Minimum values:

(- pi, -10), (pi, -10),
Oxana [17]3 years ago
3 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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