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Prove that sin²A-sin²B/sinAcosA-sinBcosB = tan(A+B)

  1. Prove thatsin²A-sin²B/sinAcosA-sinBcosB = tan(A+B)
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    2. Kewal asked by Kewal
    3. views icon 773 views
  2. If A + B + C = 180° prove thatSin2A + sin2B – sin2C = 4cosAcosBsinC
    1. answers icon 1 answer
    2. Kewal asked by Kewal
    3. views icon 952 views
  3. If A + B + C = π, prove that: ( sin2A + sin2B + sin2C ) / ( sinA + sinB + sinC ) = 8 sin(A/2) sin(B/2) sin(C/2)
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    2. manish asked by manish
    3. views icon 921 views
  4. Prove that in any triangle ABC Sin2A+Sin2B+Sin2C/SinA+SinB+SinC=8Sin(A/2)Sin(B/2)Sin(C/2)
    1. answers icon 1 answer
    2. joel asked by joel
    3. views icon 1,054 views
  5. Prove That Sin2A+SIN2B+SIN2C/SINA+SINB+SINC=8SinA/2SINB/2SINC/2
    1. answers icon 1 answer
    2. joel asked by joel
    3. views icon 935 views
  6. Prove That Sin2A+ Sin2B +SIN2C/sinA+SINB+SINC=8sinA/sinB/2COSC/2
    1. answers icon 1 answer
    2. Joel asked by Joel
    3. views icon 996 views
  7. 1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),calculate 50sin(2A +B)2.1Prove that sin2A+2cosA-2cos^3A/1+sinA =sin2A 2.2
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    2. OwamIII asked by OwamIII
    3. views icon 673 views
  8. 1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),calculate 50sin(2A +B)2.1Prove that sin2A+2cosA-2cos^3A/1+sinA =sin2A 2.2
    1. answers icon 5 answers
    2. tshepo asked by tshepo
    3. views icon 1,011 views
  9. Verify/prove that:sinAcosA/1-cosA = sin^2/tanA-sinA
    1. answers icon 1 answer
    2. Kid asked by Kid
    3. views icon 659 views
  10. Prove that (1-sinb)/(1+sin2b)=tan^2(45-b) plz the b means beta???
    1. answers icon 2 answers
    2. Collins asked by Collins
    3. views icon 610 views