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ECAT - Practice Test - Maths - Algebra Quiz

Attempt 10 MCQs on ECAT - Practice Test - Maths - Algebra | Quiz 4

31. What is 5! (5 factorial)?



32. The formula for permutations of n items taken r at a time is:



33. The formula for combinations of n items taken r at a time is:



34. In how many ways can 3 books be arranged from a shelf of 5 books?



35. In how many ways can 2 books be selected from 4 books?



36. The factorial notation n! is defined as:



37. What is the coefficient of x³ in the expansion of (1+x)⁴?



38. What is the general term in the expansion of (a + b)ⁿ?



39. In the expansion of (a+b)ⁿ, the sum of the exponents of a and b in each term is:



40. How many terms are in the expansion of (a+b)ⁿ?



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