Question: Write down i the maximum value, and ii the minimum value, of the following expressions, and in each case give the smallest positive (or zero)

Write down i the maximum value, and ii the minimum value, of the following expressions, and in each case give the smallest positive (or zero) value of x for which it occurs.

a. cos x

b. 4 sin x

c. cos (−x)

d. 3 + sin x

e. −sin x

f. sin 3x

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