Evaluate lim\(_{x→1}\) \(\frac{1-x}{x^2 - 3x + 2}\)
The mean age of n men in a club is 50 years. Two men aged 55 and 63 left the club, and the mean age reduced by 1 year. Find the value of n
A committee of 4 is to be selected from a group of 5 men and 3 women. In how many ways can this be done if the chairman of the committee must be a man?
Which of the following matrices is a singular matrix?
