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sin²B - sin²Bcos²B

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  1. sin²B - sin²Bcos²B
    1. answers icon 1 answer
    2. mr o qamata asked by mr o qamata
    3. views icon 216 views
  2. 1. (1-sin²B)/(sin²Bcos²B)= csc²B-sec²B--that's really the given. please help.
    1. answers icon 2 answers
    2. anjelica318 asked by anjelica318
    3. views icon 582 views
  3. Prove thatsin²A-sin²B/sinAcosA-sinBcosB = tan(A+B)
    1. answers icon 0 answers
    2. Kewal asked by Kewal
    3. views icon 761 views
  4. If A + B + C = 180° prove thatSin2A + sin2B – sin2C = 4cosAcosBsinC
    1. answers icon 1 answer
    2. Kewal asked by Kewal
    3. views icon 941 views
  5. 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 593 views
  6. 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 908 views
  7. 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 506 views
  8. 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 1,038 views
  9. 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 911 views
  10. 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 978 views