What is the range of-6cos(5y) ?

The range of-6cos(5y) is -6<= f(y)<= 6

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range of-6cos(5y)

range

- 6 cos (5 y)

- 6 \leq f (y) \leq 6

Interval Notation

[- 6, 6]

Solution steps

The range of the basic

cos

function is

- 1 \leq cos (5 y) \leq 1

- 1 \leq cos (5 y) \leq 1

Multiply the edges of the range by:

- 6

- 6 \leq - 6 cos (5 y) \leq 6

Therefore the range is

- 6 \leq f (y) \leq 6

(- 4.5) (- 1.2)

f (x) = 36 + 9 x

f (x) = \frac{- x ^{2} - 2 x + 3}{x - 2}

(1, 26), (\frac{13 π}{3}, 26)

f (x) = \frac{x ^{2}}{x ^{2} - 16}