IIT JEE , AIEEE Forum - Mathematics , Algebra

ashish040191

1)whats maxm value of sin(A/2)sin(B/2)sin(C/2) ?(ans.; 1/8)

2)i dont understand diff. formula in inverse function with CONDITION! e.g 2tan-1x = pie-sin^-1(2x/1+x²) if x>1.......

Plz tell me hoe can i understand these conditions????

smarsh

FOR CONDITIONS JUST C WHERE IS INVERSE FUNCTION DEFINED...........IF U KNOW THE GRAPHS OF INVERSE FUNCTIONS ......(DEFINATIONS AND RANGE.....ETC)THE N U CAN EASILY FIND THE CONDITIONS

krishna.gopal

Only one question at a time

For first one maximum value will come when by symmetry
A= B = C

So Sin(A/2)=sin(B/2)=sin(C/2)=1/2
So answer is 1/8

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