CBSE Class 10-Mathematics: Chapter –3 Pair of Linear Equation in Two Variables Part 11
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Question 16:
ABCD is a rectangle, find the values of x and y.
Rectangle, Find the Values
Answer:
On adding (i) and (ii),
Question 17:
Given the linear equation , write another linear equation in two variable such that the geometrical representation of the pair so formed is
(a) Intersecting lines
(b) Parallel lines
(c) Overlapping
Answer:
another linear equation representing.
(a) Intersecting lines is
(b) Parallel lines
(c) Overlapping
Question 18:
Find the value of for which the system of equation has infinitely many solutions
i.e.
if
Or if
Or if
If
Question 19:
Find the relation between a, b, c and d for which the equations and have a unique solution.
Answer:
Or
Question 20:
Solve for and :
Answer: