Home
Class 11
MATHS
If A+B+C=(pi)/(2) ,prove that: sin 2A+"s...

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

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    MODERN PUBLICATION|Exercise Exercise 3(i)Long Answer type Question-II|1 Videos

  • TRIGONOMETRY

    MODERN PUBLICATION|Exercise Exercise 3(J)Long Answer type Question-I|3 Videos

  • TRIGONOMETRY

    MODERN PUBLICATION|Exercise Exercise 3(h)Long Answer type Question-II|1 Videos

  • STRAIGHT LINES

    MODERN PUBLICATION|Exercise Chapter test|12 Videos

Similar Questions

Explore conceptually related problems

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

If A+B+C=pi/2 , prove that: sin2A + sin2B+sin2C = 4cosA cosB cosC

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 sin2A-sin2B+sin2C=4cosA sin B cosC .

If A+B+C= pi/2 ,prove that: sin2A-sin2B+sin2C=4sinAcosBsinC

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

If A+B+C=180^(@), prove that sin2A+sin2B-sin2C=4cos A cos B sin 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=180^@ prove that sin A+sin B+sin C=4 "cos" A/2 "cos" B/2 "cos" C/2