Establish the following identity: CosA/1-TanA + SinA/1-CotA = CosA-SinA

  1. 👍 0
  2. 👎 0
  3. 👁 131
asked by uche
  1. cosA/(1-tanA) + sinA/(1-cotA)
    cosA/(1-tanA) + sinAtanA/(tanA-1)
    (cosA - sinAtanA)/(1-tanA)
    (cos^2A-sin^2A) / cosA(1-tanA)

    sure you don't have a typo somewhere?

    1. 👍 0
    2. 👎 0
    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. Maths

    Hi, can someone give me the answer to this question: secA-tanA=1/4. Find cosA I got: CosA=4(1-sinA) Is my answer good? Now multply each side by (1+sinA) CosA(1+sinA)=4 cos^2 A CosA=1/4 (1+sinA) 16(1-sinA)=1+sinA 15=17SinA So you

    asked by Shym on June 3, 2007
  2. mathematics trignometry

    prove that the following are identity 1. (cotA+cosecA-1)/(cotA-cosecA+1)=cosecA+cotA 2. (sinA-cosA+1)/(sinA+cosA-1)= 1/(secA-tanA)

    asked by Anonymous on March 20, 2011
  3. further mathematics

    Let P=(cosA sinA) (sinA cosA) Q=(cosB sinA) (sinB cosA) show that PQ=(cosA(A-B) sin(A B)) (sinA(A B) cos(A-B))

    asked by James on September 17, 2013
  4. Math

    Hello I am having trouble with proving this: sinA/secA+secA/cscA = tan(A)(2-sin^2(A)) So far I've gotten SinA/(1/cosA) + (1/cosA)/(1/sinA) SinACosA + sinA/cosA I am stuck here, not even sure if multiplying by the reciprocal was

    asked by Jimbo on April 23, 2019
  5. Maths

    Prove that [sinA/(1-cosA)-(1-cosA)/sinA]*[cosA/(1+sinA)+(1+sinA)/cosA]=4cosecA I the second part as 2 secA

    asked by Agastya on September 15, 2016
  1. Math

    CosA/1+sinA=1-sinA/cosA I have to prove the identity each side has to b the same how would i do that? I have a unit test on monday so im doing practice questions

    asked by Kristien on February 23, 2013
  2. trig

    prove that :cosA-sinA+1/cosA+sinA-1=cosecA+cotA

    asked by rajan on August 16, 2013
  3. maths(trigonometry)

    prove that sinA-cosA+1/sinA+cosA-1=1/secA-tanA

    asked by meenal on May 16, 2008
  4. Trigonometric Identities

    Verify/prove the following: (sinA+tanA)/(1+secA) = sinA ______________________________ tanu = 1+sinu-cos^2u/cosu(1+sinu) __________________________________ cotu = (2+cscu/secu)-2cosu ______________________________

    asked by Kid on March 14, 2016
  5. physics

    the velocity ratio of an inclined plane whose angle is a I a). VR=1/sinA b). VR=1/tanA c). VR=1/cosA d). VR=1/cotA?

    asked by poppy👌🤔 on May 9, 2019

More Similar Questions