Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


Every linear combination  acosx+bsinxacos⁡x+bsin⁡x  can be written as a phased sine wave


where  φφ  is the phase (which you can determine by the sum formula for sines),  and  a2+b2−−−−−−a2+b2  is the amplitude.

The amplitude and its negation determine the maximum and minimum values of the function.  In this case the amplitude is  2√.2.

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts