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If A+B+C=^(^=180) prove that sinA

  1. In any angle ABC prove that the perimeter = a/Sin A(Sin A + Sin B + Sin C)Start with perimeter = a+b+c but b= aSinB/sinA and c=
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    2. Anonymous asked by Anonymous
    3. views icon 578 views
  2. 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
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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. 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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  5. 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 983 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
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    2. Kristien asked by Kristien
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  7. IfA=340°, prove that2cosA/2 = -(v1+sinA) - (v1-sinA)
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    2. Kewal asked by Kewal
    3. views icon 590 views
  8. IfA=340°, prove that2sinA/2 = -(v1+sinA) + (v1-sinA)
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    2. Kewal asked by Kewal
    3. views icon 980 views
  9. Cos^2A/sinA-cosecA+sinA=0Prove lHS =RHS
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    2. Sneha asked by Sneha
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  10. i have a problem in dis sum from complex numbersprove that (1+sinA+icosA)/(1-sinA-icosA)=i(secA+tanA)
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    2. sonia asked by sonia
    3. views icon 639 views