Quadratic Formula
Quadratic Formula See also Completing the square method Quadratic Equation by Factorization Method Factorization of Quadratic Expressions QUADRATIC EQUATION & SYMMETRIC PROPERTIES OF THE ROOT Completing the square
Mathematics (All Classes)
Using logarithm to solve problems with powers and root
See also Using logarithm to evaluate problems INDICIAL/EXPONENTIAL EQUATION BASIC CONCEPT & APPLICATION OF LAWS OF INDICES PERIMETER OF REGULAR PLANE SHAPES Geometry – Plane Shapes
Using logarithm to solve problems with powers and root Read More »
Statistics | Data Presentation
Statistics | Data Presentation See also CHANGE OF SUBJECT OF A FORMULA WORD PROBLEMS ALGEBRAIC PROCESSES APLLICATION OF BINARY NUMBERS BINARY NUMBERS
Statistics | Data Presentation Read More »
SQUARES AND SQUARE ROOTS OF NUMBERS
SQUARES AND SQUARE ROOTS OF NUMBERS (1- digit and 2 – digit numbers) Example: 1: find 22 = 4 2 =( 2 x 2) + ( 4 x 4) = 4 + 16 = 20 Example 2: find 42 – 22 = (4×4) – (2 x 2) = 16 – 4 = 12 Example
SQUARES AND SQUARE ROOTS OF NUMBERS Read More »
Matrices and Determinants
See also SURDS SOLVING PROBLEMS BASED ON LAWS OF LOGARITHM LOGARITHM OF NUMBERS LESS THAN ONE Using logarithm to solve problems with powers and root Using logarithm to evaluate problems
Matrices and Determinants Read More »
SQUARES OR POWERS OF NUMBERS
SQUARES OR POWERS OF NUMBERS See also LOGARITHMS OF WHOLE NUMBERS INDICES STANDARD FORM AND APPROXIMATION MODULAR ARITHMETIC RULES OF BASE NUMBER
SQUARES OR POWERS OF NUMBERS Read More »
ALGEBRAIC PROCESSES
ALGEBRAIC PROCESSES Objective: Use letter to generalize statements Interpret mathematical symbols Solve simple and problems Generating statement The following symbols are generally used in mathematics “=” means is equal to” Example: 13 – 6 = 7 means thirteen minus six is equal to seven “>” means is greater than” Example: 18 > 10 means eighteen
ALGEBRAIC PROCESSES Read More »
CHANGE OF SUBJECT OF A FORMULA
CHANGE OF SUBJECT OF A FORMULA See also WORD PROBLEMS ALGEBRAIC PROCESSES APLLICATION OF BINARY NUMBERS BINARY NUMBERS SIMPLE EQUATION AND VARIATION
CHANGE OF SUBJECT OF A FORMULA Read More »
APPROXIMATION AND ESTIMATION
APPROXIMATION AND ESTIMATION (SIGNIFCANT AND DECIMAL PLACES) SIGNIFICANT: TO ROUNDOFF A NUMBER CHANGE 0,1,2,3,4 TO 0 WHILE 5,6,7,8,9 TO 1 AND ADD IT TO THE NEXT NUMBER Example 1: round off 492.763 to (a) 3 s.f (b) 3 s.f (c) 2 d.p (d) 4 d.p Solution: (a). 492.763 = 49 (since the third number is
APPROXIMATION AND ESTIMATION Read More »
L.C.M AND H.C.F
L.C.M AND H.C.F (LOWEST AND HIGHEST COMMON FACTOR) See also OPERATIONS ON FRACTIONS FRACTIONS FRACTIONS WHOLE NUMBERS ALGERAIC FRACTIONS
HIGHEST COMMON FACTOR (HCF)
The product of 2 and 3 is; 2 x 3 = 6 2 and 3 are factors of 6 The factors of a number are numbers that divide the number without a remainder EXAMPLE Find the common factors of 24 and 36 24 = 1 x 24 36 = 1 x 36 =
HIGHEST COMMON FACTOR (HCF) Read More »
STANDARD FORM AND APPROXIMATION
STANDARD FORM AND APPROXIMATION See also MODULAR ARITHMETIC RULES OF BASE NUMBER NUMBER BASES BASIC OPERATIONS OF INTEGER SIMULTANEOUS EQUATIONS
STANDARD FORM AND APPROXIMATION Read More »
PROBLEM ON MULTIPLICATION OF MONEY
EXAMPLE Find the cost of 3 books at N91.55 each. Solution N91. 55 × 3 N274.65 EXERCISE 52 x 4 75 x 6 75 x 6 91 x 8 37 x 6 A bag of salt costs N585.40. how much will I pay for 5 bags? What is the cost of 6 meters of
PROBLEM ON MULTIPLICATION OF MONEY Read More »
LOGARITHM OF NUMBERS
REVISION OF LOGARITHM OF NUMBERS GREATER THAN ONE AND LOGARITHM OF NUMBERS LESS THAN ONE See also MENSURATION Symmetric Properties of Roots Sum & Product of Roots of a Quadratic Equation Quadratic Formula Completing the square method
LOGARITHM OF NUMBERS Read More »
SIMPLE INTEREST
Interest is the money paid for saving a particular amount of money. Simple interest can be calculated using the formula Simple interest I = PRT/100 Where P= principal, R=rate & T= time Also total amount =principal +interest Example 1 Find the simple interest on N60, 000 for 5 years at 9% per annum
MULTIPLICATION OF NUMBERS
MULTIPLICATION OF NUMBERS BY 2-DIGIT NUMBERS Example 1 multiply 25 by 12 Method 1: column form method 2: Expanded form 2 5 25 x 12 = 25 x (10 = 2) x 1 2 = (25 x 10) = (25 x 2) 2 5 0 (25 x 10) = 250 +
MULTIPLICATION OF NUMBERS Read More »
Factorization of Quadratic Expressions
Factorization of Quadratic Expressions See also QUADRATIC EQUATION & SYMMETRIC PROPERTIES OF THE ROOT Completing the square Matrices and Determinants SURDS SOLVING PROBLEMS BASED ON LAWS OF LOGARITHM
Factorization of Quadratic Expressions Read More »
Using logarithm to evaluate problems of multiplication and divison
See also INDICIAL/EXPONENTIAL EQUATION BASIC CONCEPT & APPLICATION OF LAWS OF INDICES PERIMETER OF REGULAR PLANE SHAPES Geometry – Plane Shapes SIMPLE EQUATIONS
Using logarithm to evaluate problems of multiplication and divison Read More »
SIMULTANEOUS EQUATIONS
SIMULTANEOUS EQUATIONS CONTENT Solving Simultaneous Equations Using Elimination and Substitution Method Solving Equations Involving Fractions. Word problems. SIMULTANEOUS LINEAR EQUATIONS Methods of solving Simultaneous equation Elimination method Substitution method iii. Graphical method ELIMINATION METHOD One of the unknowns with the same coefficient in the two equations is eliminated by subtracting or adding the two
SIMULTANEOUS EQUATIONS Read More »