Home
Class 14
MATHS
[" If "A+B+C=180^(@)" ,then "sin2A+sin2B...

[" If "A+B+C=180^(@)" ,then "sin2A+sin2B+],[sin2C=?],[" (a) "4sin A sin B cos C],[" (c) "4sin A sin B sin Cquad " (b) "4cos A cos B cos C],[" ."]

Promotional Banner

Similar Questions

Explore conceptually related problems

If A+B+C=180^(@), then prove that sin2A+sin2B+sin2C=4sin A sin B sin C

If A + B + C =180^@ , prove that : sin^2 A+ sin^2 B-sin^2 C=2 sin A sin B cos C .

If A + B + C = 180^(@) , prove that sin^(2)A + sin^(2)B - sin^(2)C = 2 sin A sin B cos C

If A+B+C=180^(@), show that sin2A-sin2B-sin2C=-4sin A cos B cos C

If A+B+C=180^(@)C then (sin 2A+sin 2B+sin 2C)/(cos A +cos B +cos C-1)=

If A+B+C=180^(@), prove that sin2A+sin2B-sin2C=4cos A cos B sin C

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

Prove that a cos A+b cos B+c cos C=4R sin A sin B sin C