Home
Class 11
MATHS
If A+B+C=pi, prove that : sinA+sinB+sinC...

If `A+B+C=pi`, prove that : `sinA+sinB+sinC= 4cos, A/2 cos, B/2 cos, C/2`

Promotional Banner

Topper's Solved these Questions

  • TRIGNOMETRIC FUNCTIONS

    NAGEEN PRAKASHAN|Exercise EXERCISES 3I|16 Videos

  • TRIGNOMETRIC FUNCTIONS

    NAGEEN PRAKASHAN|Exercise EXERCISES 3J|13 Videos

  • TRIGNOMETRIC FUNCTIONS

    NAGEEN PRAKASHAN|Exercise EXERCISES 3G|11 Videos

  • STRAIGHT LINES

    NAGEEN PRAKASHAN|Exercise Exercise|206 Videos

Similar Questions

Explore conceptually related problems

If A+B+C=180 , prove that: sinA+sinB+sinC=4cosA/2cosB/2cosC/2

If A+B+C=pi , prove that sin 2A+sin 2B-sin 2C=4 cos A cos B sin C

If A+B+C=180^@ prove that sin A+sin B+sin C=4 "cos" A/2 "cos" B/2 "cos" C/2

If A+B+C=pi , prove that : sin2A+sin2B+sin2C=4sinA sinB sinC

If A+B+C=pi then prove that sin2A-sin2B+sin2C=4cos A sin B cos C

If A+B+C=pi , prove that sin 2A-sin 2B+sin 2C=4cos Asin B cos C.

If A+B+C=pi, prove that sin^(2)A+sin^(2)B+sin^(2)C=2(1+cos A cos B cos C)

If A+B+C=(pi)/(2) ,prove that: sin 2A+"sin" 2B+"sin" 2C=4 cosA cos B cos C.

If A+B+C=pi , prove that : cosA + cosB-cosC=4cos(A/2) cos(B/2) sin(C/2) -1

In DeltaABC , prove that: sinA+sinB-sinC=4sinA/2sinB/2cosC/2