You can only add or subtract Surds in the same basic form. Sometimes if the surds are not in the same basic form and needed to be simplified and brought to the same basic form before the addition or subtraction will be carried out. Note:√a + √a = 2√a2√b – 3√b = – √b √a […]
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Operations with Surds Whenever they talk about Surds, just bear it in mind they are directly talking about irrational numbers which can not be expressed as fraction. The reason why Surds are irrational numbers is because their exact values can not be determined. The square root of all non perfect squares are irrational, π and
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The Reciprocal of any given number “x” is 1(one) all over that particular given number “x” = 1/x. (Reciprocals of Numbers) When two numerals multiply themselves and the product is 1, the two numerals are said to be reciprocals of each other. If a numeral is represented with the letter N, and N is not
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Table of square roots are two types, to estimate a square root of a number from the four figure table is more difficult than doing same in the table of Squares. The two types of Tables of SQUARE ROOTS are: 1). Square root of numbers between 1 and 10 2). Square root of numbers between
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The squares of numbers are gotten when the number is multiplied by itself. When T is multiplied by T, that is T x T, it is being written as T² in a short form. Some examples of Squares are: 0.3² = 0.3 x 0.3 = 0.092.5² = 2.5 x 2.5 = 6.257² = 7 x
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It is hard for one to take a measurement and get an exact result. Percentage error is a little degree in percent at which a known length is measured above/below its actual value. The error that might be made during the measurement could be either positive or negative, in any ways just know that error
Percentage Gain: Every Transaction is profitable, but when you sell article below its cost price, it is thus a Loss. Gain:= Selling Price(SP) – Cost Price(CP) Example 1: Chisom bought an article #250 and sold it #300. What gain did she make? Solution:CP = #250SP = #300Gain = SP – CP = #300 – #250
How to find percentage: A percentage of any quantity is a degree by which that very quantity exists. It is another form of Proportion, Ratio or even Fraction. Note that a percentage of any quantity at its normal existence is 100 and it is represented with the simbol “%”. Examples of percentages are:x%, y%, z%
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