same1w
same1w same1w
  • 02-10-2019
  • Mathematics
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prove that sec^4 (x)=1+2 tan^2 (x)+tan^4 (x)

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VoyBTW
VoyBTW VoyBTW
  • 02-10-2019

Answer: sec^4(x)-tan^4(x) = 1+2 x tan^2(x)

Step-by-step explanation:

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