math formulae

A formula is formed by using: (a) mathematical symbols and variables (b) given conditions, and (c) simplificatio..

A formula is formed by using:A formula is formed by using: (a) mathematical symbols and variables (b) given conditions, and (c) simplification. Some well known formulae are listed below: Area of a rectangle A = l x b A = Area l = Length b = Breadth Perimeter ..

1. a 2 + b 2 = (a + b) 2 - 2ab 2. a 2 + b 2 = (a - b) 2 + 2ab 5. (a + b) 2 = (a - b) 2 + 4ab 7. (a + b + c) 2 = a 2 + b 2 + c 2 + 2 (ab + bc + ca) 8. (a + b) 3 = a 3 + 3a 2 b + 3ab 2 + b 3 = a 3 + b 3 + 3ab (a + b) 9. (a - b) 3 = a 3 - 3a 2 b + 3ab 2 - b 3 = a 3 - b 3 ..

> i see a file joy excel Tutor u can see the standard error Tutor Standard Error5.305304073 Student what formula should i use if i don't use excel to do it ? Tutor right Tutor i can give the general formula Student yes but we have to show the formula Tutor sigma /squar..

Question 1 - Question: From a class of 32 students, 4 are to be chosen for a competition. In how many ways can this be done? Answer: We are to select 4 students from 32. This selection can done ..

Question 21 - Question: A family of 4 brothers and 3 sisters is to be arranged in a row for a photograph. In how many ways can they be seated if all the sisters are together? Answer: Let B 1 ,B 2 ,B 3 ,B 4 denote the brothers and S 1 ,S 2 ,S 3 denote the sisters. Since the sisters are to be seated ..

) A sequence may be described by giving a formula for its n t h term. (iii) A sequence may be described by specifying its first few terms and a formula to determine the other terms of the sequence in terms of its proceeding terms. A sequence is said to be a progression if its te..

Question: Find n; r if Answer: ..

Question: Answer: ..

Question: Answer: Aliter: ..