symbol we use to solve questions in waec and neco exam
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(1) / means division or divide
Examples:
2/2 means 2/2
2 whole no 3/4 means 2¾
M=wp+(1/3)yp^2 means m=wp + ¾y2
(2) Log means logarithm
Example: (8) Log5 (base 8) means Log85
(3) * means multiplication
Example: 2*2 means 2x2
(4) ^ means Raise to power
Examples:
3^(-1) means 3-1
5^(2) means 52
30cm^(-2) means 30cm-2
(5) Tita means θ
Example: Tan tita means tan θ
(6) Pie means π
Example: Pie R sqr h means πr2h
(7) Base means subscript
Example: 2 Base 3 means A3
(8) Sqr root means √
Examples:
√3-√6+2√3 means Root 3-root6+2root 3
√(¾) means sqr root(3/4)
(9) bar means a dash on top a number of letter
Example: X bar means x̅
(10) ---(1) means equation 1
(11) Proportional means ∝
Example: R is proportional to 3/4rut m means R ∝ ¾
(12) Alpha means α
(13) Beta means β
(14) Gamma means γ
(15) cube root means ∛
(16) Mu means μ
(17) Rho means ρ
(18) Delta means δ
(19) Sigma means σ
(20) Tau means τ
(21) Ohm means Ω
(22) Lamda means λ
(23) Omega means ω
(24) Intersection means ∩
Example: B intersection C means B∩C
(25) Union means U
Example: B union C means BUC
(26) Factorial means !
(27) complements in sets means ‘
(28) (aq),(g),(l),(s) is used in chemistry to show the state of matter in equations
(29) Equivalent to means ≡
(30) Not equal to means ≠
(31) Quotation means “ ”
(32) Less or equal to means ≤
(33) Greater or equal to ≥
Example: (3/4)>=(1/2) means ¾ ≥ ½
(34) Plus or minus (or +-) means ±
Example: (3/4)<=(1/2) means ¾ ≤ ½
(35) Element of means ∈
Example: 2 belongs to X or 2 is a member of X means 2∈X
(36) Percent or percentage means %
(37) Degrees Fahrenheit means ℉
(38) Degrees Celsius means ℃
(39) Universal set means ξ or U
(40) Null or empty set means ∅ or {}
(41) (42) 2.S.F means 2 significant figures
(43) P=(2,3) means P={2,3} in sets
(44) Propotional to means ∝
(45) Therefore means ∴
(46) KNO(3)(s) means KNO3(s)
(47) NaCl=> Na^(+) + Cl^(-) means NaCl → Na++ Cl-
(48) Summation means Ʃ
(49) Parallel lines means ǁ
(50) Perpendicular lines means ˩
(51) Reversible equation means ↔
(52) Infinity means ∞
(53) Approximately means ~
(57) Approximately equal to ≅
Other Symbols
(1) File means ɸ
(2) Δ means Change or Triangle
(3) slope or differentiation means dy/dx or ∂y/∂x or δy/δx or Δy/Δx
(4) Parenthesis means …
(5) Naira means ₦
(6) Integral means ∫
(7) Almost equal to means ≈
(8) For all means ∀
(9) There exist means ∃
(10) Epsilon means ε
(11) Vertical dots means ⁞
Tables, Radiativity Diagrams
Table1
A table of this would be computer as follows
X:1,2,3,4
FX:4,6,8,10
F(X-Xbar):10,8,6,4
Table2
A table like this would be computed as follows
Particulars: maintenance,salaries &wages, Purchase of Drugs, total
Amount: 2500,1000,2000,5500
Logarithm Table
Tabulate
No:92.63, Log:1.9667
No: 2.914, Log: 0.4645
2.4312
Antilog = 269.9
Therefore 92.63*2.914=2.4312
Radiativity Diagram
means
(238)U(92)=>(234)Th(90) + (4)He(2)
This is computed as follows
(1)(-b± sqr rut(b^2-4ac))/2a
(2)Sqr root ((2Qh)/100)
(3)Xbar=Efx/ef
(4)Summation (n=1 to infinity )P(n)
(5)S.D= Sqr Rut ((Ef|x-xbar|^2))/Ef
(6)R is proportional to1/ sqr rut
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