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If (cosa-sina)/sina = 2 ,

  1. 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
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    2. Shym asked by Shym
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  2. 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. answers icon 1 answer
    2. Jimbo asked by Jimbo
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  3. Prove that [sinA/(1-cosA)-(1-cosA)/sinA]*[cosA/(1+sinA)+(1+sinA)/cosA]=4cosecAI the second part as 2 secA
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    2. Agastya asked by Agastya
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  4. 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))
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    2. James asked by James
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  5. CosA/1+sinA=1-sinA/cosAI have to prove the identity each side has to b the same how would i do that? I have a unit test on
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    2. Kristien asked by Kristien
    3. views icon 663 views
  6. Given that sinA=2/5 and that A is obtuse,find the value of cosA.👍 0 👎 0 👁 25 asked by Raj yesterday at 4:18am sinA =
    1. answers icon 1 answer
    2. Raj asked by Raj
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  7. I need to count this:a) 1-tg^2a/1+ctg^2a, when sina =2/3 b) 1-tg^2a/1-ctg^2a, when cosa= -1/3 c) tga * cos^2a, when sina +
    1. answers icon 1 answer
    2. Evelina asked by Evelina
    3. views icon 656 views
  8. Establish the following identity: CosA/1-TanA + SinA/1-CotA = CosA-SinA
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    2. uche asked by uche
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  9. Please help with this one. I've worked it out in so many ways and can't tell what's correct.sinA sinA ----- - ------ 1+sinA
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    2. Jasmine asked by Jasmine
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  10. prove that :cosA-sinA+1/cosA+sinA-1=cosecA+cotA
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    2. rajan asked by rajan
    3. views icon 767 views