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NCERT Class 11- Math՚s: Chapter – 6 Linear Inequalities Part 7

Question 15:

Find the linear inequalities for which the shaded region in the given figure is the solution set.

Illustration: NCERT Class 11- Math՚s: Chapter – 6 Linear Inequalities Part 7

Answer:

Question 16:

Show that the following system of linear inequalities has no solution

Answer:

let՚s plot the region of each inequality and then find the common region of all

Common Region
x31
y01

Also, satisfies the , hence region is towards the origin

Line:

Common Region
x04
y30

Also, satisfies the , hence region is towards the origin

implies that region is right to the y-axis and implies that region is up above the line ,

Question 17:

Solve the following system of linear inequalities:

Answer:

let՚s plot the region of each inequality and then find the common region of all

Common Region
x08
y120

Also, doesn՚t satisfy the , hence region is away from the origin

Line:

Common Region
x05
y150

Also, satisfies the , hence region is towards the origin

implies that region is right to the line ,

Question 18:

Show that the solution set of the following system of linear inequalities is an unbounded region

Answer:

let՚s plot the region of each inequality and then find the common region of all

Line:

Common Region
x08
y40

Also, doesn՚t satisfy the , hence region is away from the origin

Line:

Common Region
x010
y50

Also, doesn՚t satisfy the , hence region is away from the origin