The control structure of IF-THEN is a
multiple selection
double selection
single selection
None of these
The centre of the circle which circumscribes the square formed by x2 - 8x + 12 = 0 and y2 - 14y + 45 = 0 is
(4, 5)
(3, 4)
(9, 5)
(4, 7)
D.
(4, 7)
x2 - 8x + 12 = 0
Firstly, we draw the lines x = 2, x = 6 and y = 5,y = 9.
The intersection of these lines formed a square ABCD.
A circle is circumscribed on the square ABCD whose centre is (4, 7).
If a and b are two vectors of magnitude 2 inclined at an angle 60°, then the angle between a and a + b is
30°
60°
45°
None of these
The value of 2, 6, 10 ... (4n - 6)(4n - 2) is equal to
C(2n, n)
(n + 1)(n + 2)(n + 3) ... (2n)
n! P (2n, n)
None of above
Two dice are thrown simultaneously. The probability of getting a pair of ACE is
1/36
1/3
1/6
None of these