[" 20.The position vectors of "P" and "Q" are respectively and "bar(b)" if "R" is a point on "bar(PQ)^(" such that ")bar(PR)=5bar(PQ)" ,then the "],[" position vector of Ris "]

The position vectors of P and Q are respectively vec a and vec b . If R is a point on vec(PQ) such that vec(PR) = 5 vec(PQ), then the position vector of R, is

The position vectors of P and Q are respectively vec a and vec b . If R is a point on vec(PQ) such that vec(PR) = 5 vec(PQ), then the position vector of R, is

The position vectors of P and Q are respectively a and b. If R is a point on vec(PQ) such that vec(P)R = 5 vec(P)Q , then the position vector of R is

The position vectors of A and B are bar(a) and bar(b) respectively. If C is a point on the line bar(AB) such that bar(AC)=5bar(AB) then find the position vector of C.

The position vectors of P and Q are respectively a and b. If R is a point on PQ such that PR=5PQ, then the position vector of R is

The position vectors of the points A, B with respect to O are bar(a) and bar(b) and c is mid point of line segment bar(AB) then bar(OC)=

Let ABC be a triangle whose circumcentre is at P. If the position vectors of A, B, C and P are bar(a), bar(b), bar(c) and (bar(a)+bar(b)+bar(c))/4 respectively, then the position vector of the orthocentre of this triangle is