" Prove that the points "P(a,b+c),Q(b,c+a)" and "R(c,a+b)" are collinear."

Prove that the points (a, b + c), (b, c + a) and (c, a + b) are collinear.

Show that the point P(a, b + c), Q(b, c +a) and R(c, a + b) are collinear.

Prove that the points (a,b+c),(b,c+a) and (c,a+b) are collinear.

Prove that the points (a+b+c),(b,c+a) and (c,a+b) are collinear.

Prove that the points (a, b + c), (b , c+a) and (c, a+b) are collinear and find the equation of the straight line containing them .

Prove that the points (a ,b+c),(b ,c+a)a n d(c ,a+b) are collinear.

Prove that the points (a ,b+c),(b ,c+a)a n d(c ,a+b) are collinear.

Prove that the points (a,b+c),(b,c+a) and (c,a+b) are collinear and find the equation of the straight line containing them.

If a ,b ,c are the p t h ,q t h ,r t h terms, respectively, of an H P , show that the points (b c ,p),(c a ,q), and (a b ,r) are collinear.

If a ,b ,c are the p t h ,q t h ,r t h terms, respectively, of an H P , show that the points (b c ,p),(c a ,q), and (a b ,r) are collinear.