यदि `(1)/(q+r),(1)/(r+p),(1)/(p+q)` समान्तर श्रेणी में हो तब

7*(1)/(p+q),(1)/(q+r),(1)/(r+p) are in AP,then

. 1/(p+q),1/(q+r),1/(r+p) are in AP, then

The vertices of a triangle are (p q ,1/(p q)),(q r ,1/(q r)), and (r p ,1/(r p)), where p ,q and r are the roots of the equation y^3-3y^2+6y+1=0 . The coordinates of its centroid are

If p+r=mq and (1)/(q)+(1)/(s)=(m)/(r ), then prove that : p:q=r:s .

If p : q = 1(1)/(3) : 1(1)/(2) and q : r = (1)/(2) : (1)/(3) , find p : r

|(1,1,1),(p,q,r),(p,q,r+1)| is equal to

If P -= ((1)/(x_(p)), p ), Q = ((1)/(x_(q)),q), R = ((1)/(x_(r)), r) where x _(k) ne 0 , denotes the k^(th) terms of a H.P. for k in N , then :