text: # Math
  
  Prove the identity
  
  csc^2x = 2sec2x / sec2x - 1
  
  Sorry i really tried. I got : LS = 1 - (cos^2x/sin^2x) but that's it. please help
  
  1. 👍 0
  2. 👎 0
  3. 👁 155
  1. multiply RS top and bottom by cos2x and you have
  
  2/(1-cos2x)
  = 2/(1-(cos^2 x - sin^2 x))
  = 2/(1-cos^2 x + sin^2x)
  = 2/(2sin^2 x)
  = 1/sin^2 x
  = csc^2 x
  
  1. 👍 0
  2. 👎 0
  posted by Steve
  
  ## Similar Questions
  
  1. ### Math
  
  Prove this identity 1. csc^2(pi/2-x)=1+sin^2xcsc^2(pi/2-x) 2. tan(pi/4+x)+tan(pi/4-x)=2sec2x
  
  2. ### trig
  
  prove the identity: csc x-1/csc x+1 = cot^x/csc^x+2 csc x+1
  
  asked by shela on December 16, 2010
  3. ### Trig verifying identities
  
  I am having trouble with this problem. sec^2(pi/2-x)-1= cot ^2x I got : By cofunction identity sec(90 degrees - x) = csc x secx csc-1 = cot^2x Then split sec x and csc-1 into two fractions and multiplied both numerator and
  
  asked by Hutch on March 9, 2015
  4. ### Prove trig identity
  
  Prove the following trigonometric identity: (sec^2x-1)(csc^2x-1)=1
  
  asked by Randy on January 9, 2011
  5. ### MATH
  
  prove the identity: cos(x)*csc(x)*tan(x)=1
  
  asked by Alisa on November 6, 2014
  1. ### Calculus
  
  prove if an identity csc (x)-cot (x)=sin (x)/1+cos(x)
  
  asked by Anonymous on October 15, 2018
  2. ### precalc
  
  prove the identity (1 + tan x) / sin x = csc x + sec x
  
  asked by clarice on October 13, 2015
  3. ### Pre-Calc/Math
  
  Prove identity: (sec x/csc x) + (sin x/cos x)=(2/cot x)