anonymous
  • anonymous
Can I get an explanation please? Thanks! derivative of tan2x = cos3y
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
When finding the derivative of a trig function, why do you take the derivative of the inside as well?
anonymous
  • anonymous
O no its saifoo.khan lol
anonymous
  • anonymous
Aww how sweet lol

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.Sam.
  • .Sam.
you take the derivative of the inside because you're using chain rule
anonymous
  • anonymous
But it isnt to a power, can you explain the chain rule/
.Sam.
  • .Sam.
watch this http://www.youtube.com/watch?v=6kScLENCXLg
anonymous
  • anonymous
The problem is why dont you do the chain rule with cos3y? I thought it was -sin3y x 3 but theres no 3...
.Sam.
  • .Sam.
the answer is -3sin3y
.Sam.
  • .Sam.
you have already done the chain rule -sin3y x 3 the 3 go in front of the -sin3y x 3 -3sin3y
anonymous
  • anonymous
the answer says that it is not -3sin3y just -sin3y
.Sam.
  • .Sam.
what's with the tan2x in your first post?
.Sam.
  • .Sam.
the answer cannot be just -sin3y
anonymous
  • anonymous
you are right. textbook must be wrong. Thanks

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