Question

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

Answer 1

Do you mean is an identity? lool

Answer 2

yes... sorry it was a typo

Answer 3

But C is out of the question.

Answer 4

I just bought a new keyboard and I'm trying to get used to it.

Answer 5

I don't think it is B or A either... let me check

Answer 6

Its not B,C or D...so which one is it??

Answer 7

Yes, i made a mistake lynfran is right

Answer 8

So it is A

Answer 9

basically

Answer 10

correct

Answer 11

thank you

Answer 12

Wait a minute....

Answer 13

Okay

Answer 14

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

Answer 15

Yup just double checking lol. It's 12 am and i don't trust my guts

Answer 16

It's only 10pm here and I don't trust myself either lol

Answer 17

lol

Answer 18

Thank you very much to you both for helping me

Answer 19

welcome