Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,459 questions

17,854 answers

1,446 comments

807,718 users

1/sec x tan x=csc x-sin x

0 votes

verify this identity step by step?

asked Apr 15, 2014 in TRIGONOMETRY by anonymous

1 Answer

0 votes
RHS = cscx - sinx = 1/sinx - sinx =

(1 - sin²x)/sinx = cos²x/sinx = cosx(cosx/sinx) =

(1/secx)(1/tanx) = 1/(secx tanx) = LHS

Note: 1/secx tanx is NOT correct due to the order of operations. Use parentheses!!

 

https://answers.yahoo.com
answered Apr 15, 2014 by anonymous

Related questions

...