If 2i +pj and 4i -2j are perpendicular, find the value of...
If 2i +pj and 4i -2j are perpendicular, find the value of p.
2
3
4
5
Correct answer is C
(2i + pi) (4i - 2j) =0
2 x 4 - p x 2=0 ;
8-2p = 0; 2p-8;
p=4
The coordinates of the centre of a circle is (-2, 3). If its area is 25πcm2, find its equa...
If |m−2m+1m+4m−2|=−27, find the value of m...
Given that P=(−2134) and \(Q = \begin{pmatrix} 5...
Given that log3(x−y)=1 and log3(2x+y)=2, find the value of x...
Find the equation of the line which passes through (-4, 3) and parallel to line y = 2x + 5. ...
A particle is acted upon by two forces 6N and 3N inclined at an angle of 120° to each other. Fin...
Find the coordinates of the centre of the circle 4x2+4y2−5x+3y−2=0....
Given that f(x)=3x2−12x+12 and f(x)=3, find the values of x....
The marks scored by 4 students in Mathematics and Physics are ranked as shown in the table below ...