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CBSE Class 8 Answered

What is the formula of finding (a+b)^3
 
Asked by sakkhogun24 | 15 Sep, 2014, 09:21: PM
answered-by-expert Expert Answer
T h e space f o r m u l a space i s space : open parentheses a plus b close parentheses cubed equals a cubed plus 3 cross times a cross times b cross times open parentheses a plus b close parentheses plus b cubed
Answered by Vimala Ramamurthy | 16 Sep, 2014, 09:52: AM

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CBSE 8 - Maths
cube root of 64000
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Observe the following pattern of sums of odd numbers: 1 = 1 = 13 3 + 5 = 8 = 23 7 + 9 + 11 = 27 = 33 13 + 15 + 17 + 19 = 64 = 43 21 + 23 + 25 + 27 + 29 = 125 = 53 Express the following numbers in the same pattern i) 73 ii) 83 iii) 93
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CBSE 8 - Maths
If 23-13 = 1 + 2 x 1 x 3 33-22 = 1 + 3 x 2 x 3 Find : i) 73 - 63 ii) 123 - 113
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CBSE 8 - Maths
Find the cube roots of 64 and 216 by cube pattern: 13 = 1 23-13 = 7 33-23 = 19 43-33 = 37 53-43 = 61 63-53 = 91 ......
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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Look at the following pattern:   Using this pattern, find the value of 100013 and 1000013. 
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What is the smallest number by which 3087 may be multiplied so that the product is a perfect cube?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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