WAEC - Further Mathematics (2021 - No. 28)
If 2i +pj and 4i -2j are perpendicular, find the value of p.
2
3
4
5
Explanation
(2i + pi) (4i - 2j) =0
2 x 4 - p x 2=0 ;
8-2p = 0; 2p-8;
p=4
Comments (0)
(2i + pi) (4i - 2j) =0
2 x 4 - p x 2=0 ;
8-2p = 0; 2p-8;
p=4
