If the point A is symmetric to the point `B(4,-1)` with respect to the bisector of the first quadrant, then the length of AB is:

If the point A is symmetric to the point B(4,-1) with respect to the bisector of the first quadrant then AB is

Let A-=(-4, 0), B -= (-1, 4). C and D are points which are symmetric to points A and B respectively with respect to y-axis, then area of the quadrilateral ABCD is (A) 8 sq units (B) 12 sq. units (C) 20 sq. units (D) none of these

The position verctors of the points A and B with respect of O are 2hati+2hatj+hatk and 2hati+4hatj+4hatk , the length of the internal bisector of angleBOA of DeltaAOB is

Circles are drawn through the point (2, 0) to cut intercept of length 5 units on the x-axis. If their centers lie in the first quadrant, then find their equation.

A(-4,0) and B (-1,4) are two given points. Cand D are points which are symmetric to the given points A and B respectively with respect to y-axis. Calculate the perimeter of the trapezium ABDC.

A circle is passing through the points A (1, 1) and B (1, 3) and the bisector of first and third quadrant is normal to it, then its area is

Tangent drawn from the point P(4,0) to the circle x^2+y^2=8 touches it at the point A in the first quadrant. Find the coordinates of another point B on the circle such that A B=4 .

In which quadrant do the points lie: (4,3)

Point A and B are in the first quadrant; point O is the origin. If the slope of O A is 1, the slope of OB is 7, and O A=O B , then the slope of A B is -1/5 (b) -1/4 (c) -1/3 (d) -1/2

Figure shows a square loop of edge a made of a uniform wire. A current i enters the loop at the point A and leaves it at the point C. Find the magnetic field at the point P which is on the perpendicular bisector of AB at a distance a/4 from it.