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Yogita Ingle 5 years, 7 months ago
A prime number is a positive integer having exactly two factors. If p is a prime, then it’s only factors are necessarily 1 and p itself. Any number which does not follow this is termed as composite numbers which means that they can be factored into other positive integers.
A rational number, in Mathematics, can be defined as any number which can be represented in the form of p/q where q is greater than 0. Also, we can say that any fraction fit under the category of rational numbers, where denominator and numerator are integers and the denominator is not equal to zero.
Posted by Rameshwar Suryawanshi 5 years, 7 months ago
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Simran - 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Cube root is the inverse process of calculating the cube of a number. It is denoted by the symbol ‘∛’. Let us see some examples here now.
To find the cube root of a number 27, we want a number which when multiplied thrice with itself shall give 27. We can write,
27 = 3 × 3× 3 = 33
Taking cubic root on both the sides;
or ∛27 = ∛33
Therefore, cube-root of 27 is 3.
Posted by Nithya Chinnu 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
In practice, the method of cross-multiplying means that we multiply the numerator of each (or one) side by the denominator of the other side, effectively crossing the terms over.We can use cross-multiplication to solve an equation with 2 ratios and find the value of the variable. We can use cross-multiplication to find the value of a variable in an equation involving ratios, as shown in the example.
Posted by Gurman Hans 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
4x-1/2=2/3
4x = 2/3 + 1/2
4x = (4+3)/6
4x = 7/6
x = 7/24
Posted by Pratham Ovhal 5 years, 7 months ago
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ẞøñú Yãdãv 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
5(y-7)-3(y-8)+5(y+5)=0
5y - 35 - 3y + 24 + 5y + 25 =0
10y -3y + 14 = 0
7y = -14
y = -14/2
y = -2
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Meghna Thapar 5 years, 7 months ago
In practice, the method of cross-multiplying means that we multiply the numerator of each (or one) side by the denominator of the other side, effectively crossing the terms over. We can use cross-multiplication to solve an equation with 2 ratios and find the value of the variable. We can use cross-multiplication to find the value of a variable in an equation involving ratios, as shown in the example.
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Meghna Thapar 5 years, 7 months ago
There are infinite rational numbers between two rational or two irrational number. Eg. Rational no between 2 & 3 are - 2.1, 2.11, 2.1876555, 2.3663636……… and so on. In the same way between any rational numbers infinite rational numbers are there.
Posted by Videsh Pathak 5 years, 7 months ago
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Nithya Chinnu 5 years, 7 months ago
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