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Popular >

periodicity of f(x)=cos(7x)

Solution

periodicity

f (x) = cos (7 x)

Solution

\frac{2 π}{7}

Solution steps

Periodicity of

a \cdot cos (b x + c) + d = \frac{periodicity of cos ( x )}{∣ b ∣}

Periodicity of

cos (x)

is

2 π

= \frac{2 π}{∣ 7 ∣}

Simplify

= \frac{2 π}{7}

Popular Examples

domain of sqrt(x+2)-2 domain

x + 2 - 2

range of 1/(x+4)+3 range

\frac{1}{x + 4} + 3

inverse of y=-2x+5 inverse

y = - 2 x + 5

inverse of (490*e^{3x})/(4+e^{3x)}inverse

\frac{490 \cdot e ^{3 x}}{4 + e ^{3 x}}

extreme f(x)= 1/x extreme points

f (x) = \frac{1}{x}

Frequently Asked Questions (FAQ)

What is the periodicity of f(x)=cos(7x) ?
The periodicity of f(x)=cos(7x) is (2pi)/7