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Popular >

f(x)=-cos(2x)

Solution

f (x) = - cos (2 x)

Solution

Period : π

Domain : - \infty < x < \infty

Range : - 1 \leq f (x) \leq 1

X Intercepts : (\frac{π}{4} + πn, 0), (\frac{3 π}{4} + πn, 0), Y Intercepts : (0, - 1)

Asymptotes : None

Extreme Points : Minimum (πn, - 1), Maximum (\frac{π}{2} + πn, 1)

+1

Interval Notation

Domain : (- \infty, \infty)

Range : [- 1, 1]

Solution steps

Periodicity of

- cos (2 x) : π

Domain of

- cos (2 x) : - \infty < x < \infty

Range of

- cos (2 x) : - 1 \leq f (x) \leq 1

Axis interception points of

- cos (2 x) :

X Intercepts

: (\frac{π}{4} + πn, 0), (\frac{3 π}{4} + πn, 0),

Y Intercepts

: (0, - 1)

Asymptotes of

- cos (2 x) :

None

Extreme Points of

- cos (2 x) :

Minimum

(πn, - 1),

Maximum

(\frac{π}{2} + πn, 1)

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Frequently Asked Questions (FAQ)

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