Posted by Katherine on Monday, February 21, 2011 at 9:44pm.
(tan/(1+sec)) + ((1+sec)/tan) = 2csc
(Show all work please.)
Pre-cal/Trig - Reiny, Monday, February 21, 2011 at 10:27pm
I see tangents and secants on the left side, so I suspect to use the identity
tan^2x + 1 = sec^2x
= tanx(1+secx) + (1+secx)/tanx
= (tan^2x + 1 + 2secx + sec^2x)/(tanx(1+secx))
= (sec^2x + 2secx + sec^2x)/(tanx(1+secx))
= (2sec^2x + 2secx)/(tanx(1+secx))
= 2secx(secx + 1)/(tanx(1+secx))
Pre-cal/Trig - Delano, Wednesday, November 2, 2011 at 4:44pm
Answer This Question
More Related Questions
- Integration - Intergrate ¡ì sec^3(x) dx could anybody please check this answer. ...
- calculus (check my work please) - Not sure if it is right, I have check with the...
- Math - We have to solve for the problem below to make sure that it is equivalent...
- Calculus 12th grade (double check my work please) - 2- given the curve is ...
- Pre-Cal - Perform the addition or subtraction. tanx - sec^2x/tanx tan^2(x)/tan(x...
- calculus - find dy/dx y=ln (secx + tanx) Let u= secx + tan x dy/dx= 1/u * du/dx ...
- Pre-Cal - Simplify the expression 1/tan^2x+1 tan^2x+1 = sec^2x = 1/sec^2x I am ...
- calculus - So I am suppose to evaulate this problem y=tan^4(2x) and I am ...
- more trig.... how fun!!!! - if you can't help me with my first question hopw you...
- Calculus - could anybody please explain how sec x tan x - ¡ì sec x tan^2(x) dx...