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arifadli8

  • 3 years ago

please show me derivative of sec ^2 x

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  1. RadEn
    • 3 years ago
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    use the chain rule !

  2. RadEn
    • 3 years ago
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    |dw:1364051781321:dw|

  3. terenzreignz
    • 3 years ago
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    Which incidentally, is also the derivative of tan²x, illustrating quite elegantly that two functions having the same derivative are not necessarily the same function :D

  4. arifadli8
    • 3 years ago
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    why u use chain rule not quotient rule????

  5. terenzreignz
    • 3 years ago
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    Many paths to the top of the mountain, Champ ;) Some of them steeper, or rockier than the others, but all having the same destination.

  6. arifadli8
    • 3 years ago
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    then how u get the tan x???

  7. terenzreignz
    • 3 years ago
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    Besides, using quotient rule will have you using chain rule anyway :D

  8. terenzreignz
    • 3 years ago
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    tan²x and sec²x have the same derivative, well, because... sec²x = tan²x + 1

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