u Tue Ur these 7. If P, Q, R are three points with respective position vectors irj, i- ja The points P, Q, R are collinear, if (a) a =b = c =1 (b) a =b = c = 0

If P, Q, R are three points with respective position vectors hati + hatj, hati -hatj and a hati + b hatj + c hatk . The points P, Q, R are collinear, if

If P, Q, R are three points with respective position vectors hati + hatj, hati -hatj and a hati + b hatj + c hatk . The points P, Q, R are collinear, if

P,Q and R are three points with position vector i+j,i-j and ai +bj+ck respectively.if P,Q,R are collinear then

P,Q and R are three points with position vector i + j , i - j and ai +bj +ck respectively. if P,Q,R are collinear then

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

If A,B,C are three points with position vectors veci+vecj,veci-hatj and pveci+qvecj+rveck respectiey then the points are collinear if (A) p=q=r=0 (B) p=qr=1 (C) p=q,r=0 (D) p=1,q=2,r=0

If A,B,C are three points with position vectors veci+vecj,veci-hatj and pveci+qvecj+rveck respectiey then the points are collinear if (A) p=q=r=0 (B) p=qr=1 (C) p=q,r=0 (D) p=1,q=2,r=0

P, Q, R are three points in a plane. Join them in pairs. How many lines will you get if- (a) P, Q and R are not collinear. (b) P, Q and R are collinear.

If points hat i+ hat j , hat i- hat ja n dp hat i+q hat j+r hat k are collinear, then a. p=1 b. r=0 c. q R d. q!=1