nine letter math words used in math

Question: How many words of different 4 letters can be formed out of 7 capital letters, 3 vowels and 8 consonants, if each word starts with a capital letter and contains at least one vowel? Answer: Any capital letter can be cho..

[A i j ] where A i j is the co-factor of the element a i j . Adjoint of A is denoted by Adj A. Note that the concept of adj is only for square matrix. A square matrix A is said to be non-singular if |A| 0. Let A be a square matrix of order n. If there exists a square matrix B of order n, such that ..

Question: Ten different letters of an alphabet are given. Words with five letters are formed from these given letters. Find the number of words which have atleast one letter repeated. Answer: Total number of 5 letter ..

Matrices - Consider the arrangement In this arrangement, there are two rows and four columns. The number 3 lies in the 2 n d row and 4 t h column. Each number has a fixed position. Matrix A has 2 rows and 3 columns and is thus of order 2 x 3. Matrix B has 3 rows and 2 columns and is thus of order 3..

The percent of words of 1 to 10 letters used in articles in popular fiction story book is recorded as shown. Length 1 2 3 4 5 6 7 8 9 10 Percent 3.6 14.8 18.7 16.0 12.5 8.2 8.1 5.9 4.4 2.1 Describe the shape of the distribution. => uniform or left -..

Find the number of 4 letter words that can be made using the alphabets, if repetition of a letter is not allowed. => 1 3 1 1 ! or 2 6 ! 2 2 ! or 1 3 1 1 or 2 6 ! 4 !..

How many different 4-letter permutations can be formed using the letters in the word 'united' exactly once? => 360 or 15 or 720 or 24..

How many 2 letter words can be made using the English alphabets, if repetition of a letter is not allowed? => 13 or 2 6 ! 2 4 ! or 2 ! 2 6 ! or 52..

Find the number of three letter words that can be formed with the letters of the word FCP . => 12 or 6 or 9 or 3..

Which one of these words gives you the number of letters in the box shown? => Nine or Six or Seven or Eight..