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if sina,cosa,tana are in geometric

  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 957 views
  2. if sina, cosa, tana are in geometric progression then prove that cot^6a-cot^2a=1
    1. answers icon 0 answers
    2. Anonymous asked by Anonymous
    3. views icon 468 views
  3. if sina,cosa,tana are in geometric progression then prove that cot^6a-cot^2a=1
    1. answers icon 0 answers
    2. Anonymous asked by Anonymous
    3. views icon 411 views
  4. 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 606 views
  5. prove thatsinA-cosA+1/sinA+cosA-1=1/secA-tanA
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    2. meenal asked by meenal
    3. views icon 841 views
  6. if 5cos A plus 3=0 and 180<A<360..without using a calculator and with the aid of a diagram,determine the value of 1.1 sinA plus
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    2. patience morakile asked by patience morakile
    3. views icon 1,124 views
  7. 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 817 views
  8. 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
    3. views icon 753 views
  9. Verify/prove the following:(sinA+tanA)/(1+secA) = sinA ______________________________ tanu = 1+sinu-cos^2u/cosu(1+sinu)
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    2. Kid asked by Kid
    3. views icon 766 views
  10. In a right triangle if sinA=6/7 and cosA=4/7 what is tanA=
    1. answers icon 2 answers
    2. Salma asked by Salma
    3. views icon 596 views