find cube of 42 using column method
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Answer:
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Step-by-step explanation:
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Answered by
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Solution: Here two digits are 4 and 2.
a = 4, and b = 2. By using the column-method:-
Column I
Column II
Column III
Column IV
a3
3 x a2 x b
3 x a x b2
b3
43 = 64
+ 10
3 x 42 x 2 = 96
+ 4
3 x 4 x 22 = 48
+ 0
23 = 8
74
100
48
8
74
0
8
8
a = 4, and b = 2. By using the column-method:-
Column I
Column II
Column III
Column IV
a3
3 x a2 x b
3 x a x b2
b3
43 = 64
+ 10
3 x 42 x 2 = 96
+ 4
3 x 4 x 22 = 48
+ 0
23 = 8
74
100
48
8
74
0
8
8
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