Posted by **sonia** on Tuesday, April 1, 2008 at 10:38am.

i have a problem in dis sum from complex numbers

prove that

(1+sinA+icosA)/(1-sinA-icosA)=i(secA+tanA)

## Answer this Question

## Related Questions

- Trig - Please help with this one. I've worked it out in so many ways and can't ...
- Maths - Hi, can someone give me the answer to this question: secA-tanA=1/4. Find...
- maths(trigonometry) - prove that sinA-cosA+1/sinA+cosA-1=1/secA-tanA
- Trig - prove that tanA divided by the sinA equals the secA
- mathematics trignometry - prove that the following are identity 1. (cotA+cosecA-...
- math - (secA+tanA)(1-sinA)
- Math - In any angle ABC prove tht the perimeter = a/Sin A(Sin A + Sin B + Sin C...
- trig - express the trig. ratios sinA,secA n tanA in terms of cotA.
- maths - prove that secA(1-sinA)-2tanA=1
- MathS triG - 1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),calculate ...