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CBSE Class 8 Answered

What is the formula of finding (a-b)^3
 
Asked by sakkhogun24 | 20 Sep, 2014, 11:01: AM
answered-by-expert Expert Answer
W e space k n o w space t h a t open parentheses a minus b close parentheses cubed equals a cubed minus 3 a squared b plus 3 a b squared minus b cubed
Answered by Vimala Ramamurthy | 20 Sep, 2014, 11:40: AM

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CBSE 8 - Maths
cube root of 64000
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CBSE 8 - Maths
find the cube of 0.3
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Evaluate
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CBSE 8 - Maths
Solve: (-425)-(-125)-(-53)+90
Asked by singhs36891 | 27 Sep, 2020, 10:43: AM
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CBSE 8 - Maths
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
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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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
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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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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CBSE 8 - Maths
Look at the following pattern:   Using this pattern, find the value of 100013 and 1000013. 
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 8 - Maths
Find: using:  
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 8 - Maths
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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