Practice Questions

Ganesh earns Rs 50 per day and spends 20 on the next day. If he continues to do so, find the day he has Rs 170 in hand

If A is skew symetric than A^2 is

If the order of A is 4x3, the order of B is 4x5 and the order of C is 7x3 then the order of [(Transpose A)(TransposeB)](TrnsposeC) is

A square matrix A is called orthogonal if ___ where A' is the transpose of A

If a matrix has P elements where P is prime then the possible order for this matrix is

A unit vector parallel to -2i + 3j

There are 2 vectors a = -i + 2j + k and b = -I + j -3k. Find the projection of a on b

If the straight line (x-xo)/l = (y-yo)/m = (z- zo)/n , is parallel to the plane ax + by + cz + d =0, then which of the following is correct

If magnitude of vector A is 3, of vector B is 4 and magnitude of vector (A-B) is 5. then whats the magnitude of vector A+B