Question

9 If |x|<5, write the interval in which x belongs.​

Answer 1

Answer:

Determine the point which maximises or minimises the function :

U= x

2

+ xy+y2

+3z2

Subject to : z+2y +4z = 60Determine the point which maximises or minimises the function :

U= x

2

+ xy+y2

+3z2

Subject to : z+2y +4z = 60