Ask a New Question
Menu

Prove : 1 + Sin2A/

  1. 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 1,033 views
  2. 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 1 answer
    2. OwamIII asked by OwamIII
    3. views icon 699 views
  3. If A + B + C = 180° prove thatSin2A + sin2B – sin2C = 4cosAcosBsinC
    1. answers icon 1 answer
    2. Kewal asked by Kewal
    3. views icon 960 views
  4. prove that 2sinA + 1 / cosA+sin2A=secA
    1. answers icon 1 answer
    2. cindy asked by cindy
    3. views icon 858 views
  5. Prove thatsin²A-sin²B/sinAcosA-sinBcosB = tan(A+B)
    1. answers icon 0 answers
    2. Kewal asked by Kewal
    3. views icon 783 views
  6. Prove thatsin3A+sin2A-sinA = 4sinAcosA/2cos3A/2
    1. answers icon 1 answer
    2. Kewal asked by Kewal
    3. views icon 925 views
  7. 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 937 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 1,071 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 955 views
  10. How do I prove : 4sinAcosAcos2Asin15 all over. :sin2A(tan225-2sinsquared A)is equal to. :root 6 - root 2 over 2
    1. answers icon 3 answers
    2. michelle asked by michelle
    3. views icon 752 views