Q. What is the period of the function g(x)=2cos(7x+5)+1?Give an exact value.units
Identify basic form and coefficient: Identify the basic form of the cosine function and the coefficient of x within the argument of the cosine function.The basic form of a cosine function is cos(Bx), where B affects the period of the function.In g(x)=2cos(7x+5)+1, the coefficient of x is 7.
Recall formula for period: Recall the formula for the period of a cosine function.The period of a cosine function is given by the formula P=2π/B, where B is the coefficient of x in the argument of the cosine function.
Calculate period using coefficient: Calculate the period using the coefficient B=7.Substitute B=7 into the formula P=B2π to find the period.P=72π
Check for mathematical errors: Check for any mathematical errors in the calculation.The calculation P=72π is correct and there are no mathematical errors.
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