DominiRican1013
  • DominiRican1013
Which of the following in an identity? A. sin^2(x)sec^2(x)+1=tan^2(x)csc^2(x) B. (csc(x)+cot(x))^2=1 C. sin^2(x)-cos^2(x)=1 D. csc^2(x)+cot^2(x)=1
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
Do you mean is an identity? lool
DominiRican1013
  • DominiRican1013
yes... sorry it was a typo
DominiRican1013
  • DominiRican1013
But C is out of the question.

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DominiRican1013
  • DominiRican1013
I just bought a new keyboard and I'm trying to get used to it.
anonymous
  • anonymous
I don't think it is B or A either... let me check
LynFran
  • LynFran
Its not B,C or D...so which one is it??
anonymous
  • anonymous
Yes, i made a mistake lynfran is right
DominiRican1013
  • DominiRican1013
So it is A
DominiRican1013
  • DominiRican1013
basically
LynFran
  • LynFran
correct
DominiRican1013
  • DominiRican1013
thank you
anonymous
  • anonymous
Wait a minute....
DominiRican1013
  • DominiRican1013
Okay
LynFran
  • LynFran
heres ur proof https://www.symbolab.com/solver/trigonometric-identity-calculator/prove%20sin%5E%7B2%7Dx%5Ccdot%20sec%5E%7B2%7Dx%2B1%3Dtan%5E%7B2%7Dx%5Ccdot%20csc%5E%7B2%7Dx/?origin=enterkey
anonymous
  • anonymous
Yup just double checking lol. It's 12 am and i don't trust my guts
DominiRican1013
  • DominiRican1013
It's only 10pm here and I don't trust myself either lol
LynFran
  • LynFran
lol
DominiRican1013
  • DominiRican1013
Thank you very much to you both for helping me
LynFran
  • LynFran
welcome

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