In how many ways can a team of 3 girls be selected from 7...
In how many ways can a team of 3 girls be selected from 7 girls?
7!3!
7!4!
7!3!4!
7!2!5!
Correct answer is C
A team of 2 girls can be selected from 7 girls in 7C3
=7!(7−3)!3!
=7!4!3!ways
In the figure POQ is the diameter of the circle PQR. If PSR = 145o, find xo ...
P(-6, 1) and Q(6, 6) are the two ends of the diameter of a given circle. Calculate the radius....
Given that tan x = 1, where 0o ≥ x 90o, evaluate 1−sin2xcosx...
If S = √t2−4t+4, find t in terms of S...
A fair die is tossed twice what is the probability of get a sum of at least 10. ...
\(\begin{array}{c|c} Age(years) & 13 & 14 & 15 & 16 & 17 \\ \hline Frequency & 10 & 24 & 8 & 5...