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Evaluate and express the number in decimal form with the same number o..
Evaluate and express the number in decimal form with the same number of significant digits as in the least accurate number given. (0.04) 2 => 1.6 × 10 -3 or 0.16 × 10 -3 or 0.8 ..
Significant Figures Introduction
Introduction - We use specific number of digits to denote an exact value of a number for required accuracy. The digits used for such a purpose are called significant figures. Suppose a measurement is recorded as 0.6204 cm. It means that the measurem..
Introduction
We use specific number of digits to denote an exact value of a number for required accuracy. The digits used for such a purpose are called significant figures. Suppose a measurement is recorded as 0.6204 cm. It means that the measurement was made co..
A recurring decimal can be expressed as a fraction
A recurring decimal is denoted by placing dots or a bar over recurring digits. Express the following recurring decimals as equivalent fractions: (a) (b) (c) (a) Let x = 0.4444 Multiply both sides by 10 ( one digit is recurring)..
A recurring decimal is denoted by placing dots or a bar over recurring digits. Express the following recurring decimals as equivalent fractions: (a) (b) (c) (a) Let x = 0.4444 Multiply both sides by 10 ( one digit is recurring)..Rational Numbers
The rational numbers can be expressed as terminating or recurring decimals. Decimal fraction has denominator as 10 or a power of 10. A recurring decimal is denoted by placing dots or a bar over recurring digits..
Question 5
Question: When a rational number can be expressed as terminating decimal? Answer: A rational number can be expressed as terminating decimal, when the factors of its denominator are in the form 2 n x 5 ..
Steps for factorisation using identities:
Recognise the appropriate identity. Rewrite the given expression in the form of the identity. Write the factors of the given expression using the identity..
Irrational Numbers
Numbers which are not rational are called irrational numbers. When expressed as decimals, they are non-terminating and non-recurring. i.e., Irrational numbers cannot be put in the form where and are some examples of irrationals. (i) is als..
Numbers which are not rational are called irrational numbers. When expressed as decimals, they are non-terminating and non-recurring. i.e., Irrational numbers cannot be put in the form where and are some examples of irrationals. (i) is als..Factorization of Polynomials
You know that any polynomial of the form p(a) can also be written as p(a) = g(a) x h(a) + R(a) it implies that Dividend = Quotient X Divisor + Remainder. If the remainder is zero, then p(a) = g(a) x h(a). That is, the polynomial p(a) is a product of two other polynomials g(a) and h(..
Factorisation using Identities
From the above identities we observe that a given expression, which is in the form of an identity can be written in terms of its facto..
From the above identities we observe that a given expression, which is in the form of an identity can be written in terms of its facto.. Result
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