If sin A=3/5 and cosB

  1. find all solutions in the interval [0,2 pi)sin(x+(3.14/3) + sin(x- 3.14/3) =1 sin^4 x cos^2 x Since sin (a+b) = sina cosb + cosb
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    2. lauren asked by lauren
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  2. CosA+cosB-cosC=4COSA/2 cosB/2 SINC/2-1
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    2. Hansika asked by Hansika
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  3. prove 1-cosB divided by 1+cosB= tan^2B/2
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    2. Sarah asked by Sarah
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  4. Prove that CosB-cosA/cosA+cosB=tanA+B/2tanA-B/2
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    2. Yash Rah asked by Yash Rah
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  5. Prove that1-cosA+cosB-cos(A+B)/1+cosA-cosB-cos(A+B) = tanA/2cotA/2
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    2. Kewal asked by Kewal
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  6. If 3 sinb + 5 cosb =5 then show that 3 cosb - 5 sinb =±3
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    2. Anonymous asked by Anonymous
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  7. 1-cosA+cosB-cos(A+B)/1+cosA-cosB-cos(A+B)=tan(A/2)ct(A/2)
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    2. Kasun asked by Kasun
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  8. if cosA = 4/5; sin <0; cosB = 12/13; 0<B<90, determine sin(A-B)thanks ... :)
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    2. Jonathan asked by Jonathan
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  9. A and B are acute angles such that cosA =3 over 5 and cosB =12 over 13
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    2. Michelle asked by Michelle
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  10. Given that [sin(A-B)/cos(A+B)]=1/3[tan(A-B)], find the values of cosB if sinA=1/2
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    2. Alex asked by Alex
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