1.

ABCD is a quadrilateral with vec(AB)= vec(a), vec(AD)= vec(b) and vec(AC)= 2 vec(a) + 3vec(b). If its area is alpha times the area of the parallelogram with AB, AD as adjacent sides, then alpha=

Answer»

`(5)/(2)`
`(3)/(2)`
`(9)/(2)`
`(7)/(2)`

Answer :A


Discussion

No Comment Found