Question

How do you find the amplitude and period for `y=cos(1/2x)-2`?

Answer 1

Amplitude: `1` , Period: `4pi`

Explanation:

Comparing with the general sinusoidal function,`Acos (Bx+c)+D`, where `A` is the amplitude,`(2pi)/|B|` is period ,`-c/|B|`is phase shift and `D`is vertical shift , we get amplitude as `1` and period as`(2pi)/(1/2)=4pi`[Ans]