1.

If A(cos alpha, sin alpha, 0) B(cos beta, sin beta, 0) C(cos gamma, sin gamma, 0) are vertices of DeltaABC and let cos alpha+cos beta+cos gamma=3a, sin alpha+sin beta +sin gamma=3b then correct matching of the following is : {:("List-1","List-II"),((A)"Circumcentre",(1)"(3a, 3b, 0)"),((B)"Centroid",(2)"(0, 0, 0)"),((C )"Ortho centre",(4)"(2a,2b,0)"):}

Answer»

`{:(A,B,C),(2,3,4):}`
`{:(A,B,C),(2,3,1):}`
`{:(A,B,C),(1,2,3):}`
`{:(A,B,C),(2,3,4):}`

ANSWER :b


Discussion

No Comment Found