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Sina+cosa=root over cosA

  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
    3. views icon 925 views
  2. 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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  3. 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) +
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    2. Jimbo asked by Jimbo
    3. views icon 798 views
  4. I need to prove that the following is true. Thanks.csc^2(A/2)=2secA/secA-1 Right Side=(2/cosA)/(1/cosA - 1) =
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    2. Dirk asked by Dirk
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  5. 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
    3. views icon 711 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 =
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    2. Raj asked by Raj
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  7. 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
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  8. 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 +
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    2. Evelina asked by Evelina
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  9. Sina+cosa=root over cosA
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    2. prasenit asked by prasenit
    3. views icon 365 views
  10. Sina+cosa=root over cosA
    1. answers icon 1 answer
    2. prasenit asked by prasenit
    3. views icon 429 views