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Let P=(cosA sinA) (sinA cosA)

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  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
    1. answers icon 2 answers
    2. Shym asked by Shym
    3. views icon 904 views
  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
    3. views icon 784 views
  3. Prove that [sinA/(1-cosA)-(1-cosA)/sinA]*[cosA/(1+sinA)+(1+sinA)/cosA]=4cosecAI the second part as 2 secA
    1. answers icon 1 answer
    2. Agastya asked by Agastya
    3. views icon 717 views
  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))
    1. answers icon 0 answers
    2. James asked by James
    3. views icon 700 views
  5. 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
    3. views icon 1,190 views
  6. 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
    1. answers icon 5 answers
    2. Kristien asked by Kristien
    3. views icon 603 views
  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 594 views
  8. Establish the following identity: CosA/1-TanA + SinA/1-CotA = CosA-SinA
    1. answers icon 1 answer
    2. uche asked by uche
    3. views icon 566 views
  9. prove that :cosA-sinA+1/cosA+sinA-1=cosecA+cotA
    1. answers icon 2 answers
    2. rajan asked by rajan
    3. views icon 696 views
  10. Prove :1 + Sin2A/ Cos2A = CosA + SinA / CosA- SinA
    1. answers icon 5 answers
    2. clive asked by clive
    3. views icon 2,465 views