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Prove That Sin2A+ Sin2B +SIN2C/sinA+SINB+SINC=8sinA/sinB/2COSC/2

  1. 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 1,017 views
  2. 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 956 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)
    1. answers icon 2 answers
    2. manish asked by manish
    3. views icon 938 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 1,072 views
  5. Prove that sinA+sinB+sinC=-4cosA/2cosB/2cosC/2
    1. answers icon 1 answer
    2. jacent asked by jacent
    3. views icon 1,461 views
  6. If sin a + sinb + sinc = 4cosa/2cosb/2cosc/2Then sin 2a + sin2b + sin 2c = 4cosacosbcosc
    1. answers icon 1 answer
    2. Anonymous asked by Anonymous
    3. views icon 536 views
  7. If A+B+C=^(^=180) prove thatsinA + sinB - sinC = 4sinA/2 sinB/2 cosC/2
    1. answers icon 2 answers
    2. ody asked by ody
    3. views icon 2,080 views
  8. a+b+c=180,show that sina+sinb+sinc=4cosa/2cosb/2cosc/2
    1. answers icon 1 answer
    2. Khat Si Thu Aung asked by Khat Si Thu Aung
    3. views icon 672 views
  9. Prove the law of sines for triangle ABC i.e sinA/a=sinB/b=sinC/c.0 please help me!!!
    1. answers icon 1 answer
    2. Meron asked by Meron
    3. views icon 714 views
  10. if cos(B-C)+cos(C-A)+cos(A-B)=-3/2 then prove that cosA+cosB+cosC=O and sinA+sinB+sinC=O after that prove that
    1. answers icon 1 answer
    2. Binoy kumar mahato asked by Binoy kumar mahato
    3. views icon 2,337 views