How to Find the Period of a Trig Function?

Identify the trig function type: sine, cosine, tangent, cotangent, secant, or cosecant

Use the base period:

Sine and cosine: (2pi)

Tangent and cotangent: (pi)

Secant and cosecant: (2pi)

If the function is (f(x)=sin(bx)) or (f(x)=cos(bx)), period (=frac{2pi}{|b|})

If the function is (f(x)=tan(bx)) or (f(x)=cot(bx)), period (=frac{pi}{|b|})

If the function is (f(x)=sec(bx)) or (f(x)=csc(bx)), period (=frac{2pi}{|b|})

For (f(x)=sin(bx+c)), (f(x)=cos(bx+c)), (f(x)=tan(bx+c)), (f(x)=cot(bx+c)), (f(x)=sec(bx+c)), or (f(x)=csc(bx+c)), use the same period formulas with (|b|)

Ignore vertical shifts and horizontal shifts when finding period

Simplify the coefficient of (x) before applying the formula

For expressions with multiple trig terms, find the period of each term and determine the least common period if needed

Verify the result by checking when the function repeats its values exactly

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