Question

Q3/A Prove that Ā = 4ax – 2ay – az, B = ax + 4ay – 4az are perpendicular to each other. Q3/B Answer the questions with True on the right phrase and false on the wrong phrase with correct the wrong if you found it. Answer five only 1. – sin Ø Is the result of dot product for unit vectors ā, dotāz. 2. Vector field that each point in its region is described by a magnitude as well as direction. 3. The circular cylindrical system is the Two-dimensional version of the polar coordinates of analytic geometry. 4. Field is a function that characterizes a physical quantity at all points in a region. 5. The dot product between any two vectors produce another vector perpendicular with these two vector. 6. At every point on the surface, the electrical flux density vector D will have same values

Answer 1

If you want to do another part other than these : 4)  TRUE

3/A) -laz Two vectors perpendic cular to each other it the bę dot product is zero. Ā : 498-2ay - az = axtlay Ā: = (4a) (@) + (-2a)(40) + (a)(-4a): 49?-80 +4Q? = 8a²-8a² = 0 proved Hence 3/B) 1 ) False 2) True 3) false 5) False 6) False