In how many ways can four Mathematicians be selected from...
In how many ways can four Mathematicians be selected from six ?
90
60
15
360
Correct answer is C
=6C4
=6!(4!×2!)
=6×52×1
= 15
Find the unit vector in the direction opposite to the resultant of forces. F1 =...
If P=x:−2<x<5 and Q=x:−5<x<2 are subsets of \(\mu = {x : -5 ...
Find the equation of the line passing through (0, -1) and parallel to the y- axis. ...
The function f : x → x2 + px + q has turning point when x = -3 and remainder of -6 when d...
A man of mass 80kg stands in a lift. If the lift moves upwards with acceleration 0.5ms−2, cal...
Given that 2x + 3y - 10 and 3x = 2y - 11, calculate the value of (x - y). ...
Find the median of the numbers 9,7, 5, 2, 12,9,9, 2, 10, 10, and 18. ...