## anonymous one year ago write the equation that has amplitude=4 & period=pi/2

1. anonymous

You don't say whether it's sine or cosine, but the format is $y=A \cos (B \theta)$ where A is the amplitude and $B=\frac{ 2 \pi }{ period }$

2. anonymous

its sin

3. anonymous

@peachpi

4. anonymous

it's still the same formula. Just change cos to sin

5. anonymous

ok how bout if the amp was like 1/3 would A be 3? @peachpi

6. anonymous

no it would be 1/3

7. anonymous

ok lol thanks last question sorry how bout if the period is 2pi/period & the period is pi/2 what would the answer be? i keep getting different answers @peachpi

8. anonymous

are you saying the period is 2pi or the period is pi/2?

9. anonymous

and you're asking how to find B?

10. anonymous

pi/2 & yes finding b @peachpi

11. anonymous

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