Luigi0210
  • Luigi0210
How would I start this? Tangent line problem.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Luigi0210
  • Luigi0210
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myininaya
  • myininaya
You to find when f'=0
Luigi0210
  • Luigi0210
Oh, alright, seems simple enough, thanks!

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myininaya
  • myininaya
Did you ever find f'?
Luigi0210
  • Luigi0210
It would be \[\LARGE f'(x)=2cosx+2sinxcosx\] right?
myininaya
  • myininaya
right now set that =0 and solve for x
myininaya
  • myininaya
\[2\cos(x)(1+\sin(x))=0\]
myininaya
  • myininaya
Solve both equations: cos(x)=0 1+sin(x)=0
Luigi0210
  • Luigi0210
And that'll give me x, to plug in and find y right?
myininaya
  • myininaya
yep once you get x here make sure you plug into f(x) to get the corresponding y for each x in that domain given.
Luigi0210
  • Luigi0210
Alright, thanks again myininaya :)

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