Find the value of x, if a + 1 = 0 and x2 + ax - 6 = 0.
3
3, -2
-2
2, -2
The sum of a number and its reciprocal is 4.25. Find the number.
3 or 1/3
4 or 1/4
5 or 1/4
1/4 or 1/2
If a : b = 5 : 3; find :
Find two consecutive positive odd numbers, the sum of whose squares is 74.
7, 7
7, 8
5, 6
5, 7
In a two digit number, the ten's digit is bigger. The product of the digits is 27 and the difference between two digits is 6. Find the number.
90
91
92
93
A diagonal matrix in which each element of its leading diagonal is unity or identity, is called a
Square Matrix
Null
Unit or Identity matrix
Diagonal Matrix
The sum of the ages of a father and his son is 45 years. Five years ago the product of their ages was 124. Find their present ages
36 and 9
40 and 5
35 and 10
25 and 20
Find the discriminant of the quadratic equation 5x2 + 12x - 9 = 0
224
324
342
424
The midpoint of the line joining (a, -b) and (3a, 5b) is
(-a, 2b)
(2a, 4b)
(2a, 2b)
(-a, -3b)
Find the distance between the following pairs:(-3, 6) and (2 -6)
12
11
13
15
