anonymous
  • anonymous
What is the frequency of the function y = -5cos6x?
Mathematics
schrodinger
  • schrodinger
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kropot72
  • kropot72
You can use the following equation \[\large y=A \cos Bx\] where the period \[\large T=\frac{2 \pi}{B}\] to find the period of the given function by plugging in values, giving the period \[\large T=\frac{2\pi}{6}\] The frequency is the reciprocal of the period. Therefore \[\large f=\frac{6}{2\pi}\]
kropot72
  • kropot72
which can be simplified to \[\large f=\frac{3}{\pi}\]
anonymous
  • anonymous
thank you!!!@kropot72

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anonymous
  • anonymous
no i have a boyfriend @David27
kropot72
  • kropot72
You're welcome :)

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