AMackenzieS AMackenzieS
  • 01-03-2017
  • Mathematics
contestada

Find the greatest maximum y-value of the following equation:

f(x) = 3cos 2x + 4

I'd appreciate any help on this one, thanks

Respuesta :

LammettHash
LammettHash LammettHash
  • 01-03-2017
A quick way to do this is by recalling the fact that [tex]-1\le\cos x\le1[/tex], so the largest value that [tex]\cos ax[/tex] alone (for any real value of [tex]a[/tex]) can take on is 1.

This means [tex]-3\le3\cos2x\le3[/tex], and so [tex]1\le3\cos2x+4\le7[/tex].

So the maximum value of this function is 7.
Answer Link

Otras preguntas

360 customers in 30 days in Ratio form
How do you write a decimal as a fraction or mixed number
Passing through the tunnel into the open air can be symbolically compared to _____.
How do i get y separated from 3y - 6 = 9 + 12x
what is 15 units right of 0? please help its due today
expanded form for 6009
what did the social class with the largest number of people contribute to early civilizations?
It's division I think
How did Native Americans’ religious beliefs affect their lives in North America?
Sí, yo _____ a pensar en la última competencia de atletismo mucho, me vuelo loco. a. te pones b. se pone c. me pongo