In a `DeltaABC`, if 2AC=3CB, then 2OA+3OB is equal to

If in DeltaABC , a=2b and A=3B, then A is equal to

If in DeltaABC , a=2b and A=3B, then A is equal to

In DeltaABC,a=2,b=3andsinA=(2)/(3) , then B is equal to

In DeltaABC,2ac" sin "(A-B+C)/(2) is equal to

In DeltaABC , if AB^(2)=AC^(2)+CB^(2) . State with reason whether DeltaABC is a right angled triangle or not.

Let A and B be points with position vectors a and b with respect to origin O. If the point C' on OA is such that 2AC CO, CD Is parallel to OB and CD 3OB then AD is parallel to OB and 0-3|OR then AD is 3 1) b 3 2) a A 158

DeltaABC is an isosceles triangle. AB = AC and BD is perpendicular on AC from vertex B, then BD^(2)-CD^(2) is equal to-