multiply the left side by (1-sinA+icosA)/(1-sinA+icosA)
expand and simply it down to
multiply that by (1-sinA)/(1-sinA)
expand again and simplify down to
= i(1/cosA - sinA/cosA)
= i(secA - tanA)
= Right Side
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...
maths - prove that secA(1-sinA)-2tanA=1
trig - express the trig. ratios sinA,secA n tanA in terms of cotA.
Math - Prove the identity: tanA/secA+1 = secA-1/tanA Can u please explainit to ...