CAT WhatsApp Group
Sign in
Please select an account to continue using cracku.in
↓ →
CAT WhatsApp Group
Click the option on the left followed by your answer on the right
Scorecard
Correct
Incorrect
1
Sum of first n natural numbers
$$\dfrac{n(n+1)}{2}$$
2
Sum of squares of first n natural numbers
$$\dfrac{n(n+1)(2n+1)}{6}$$
3
Sum of cubes of first n natural numbers
$$\left\{\dfrac{n(n+1)}{2}\right\}^2$$
4
Sum of first n odd numbers
$$n^2$$
5
Sum of first n even numbers
$$n(n+1)$$
Educational materials for CAT preparation
