Find 100 3-60 3-40  3 using identity 

Asked by Vanishree | 17th Sep, 2014, 11:09: AM

Expert Answer:

100 cubed minus space 60 cubed space minus space 40 cubed W e space k n o w space t h a t space 60 space plus thin space 40 space equals space 100 C u b i n g space o n space b o t h space s i d e s space g i v e s open parentheses 60 space plus thin space 40 close parentheses cubed space equals space 100 cubed 60 cubed space plus thin space 40 space cubed space plus thin space 3 cross times 60 cross times 40 space left parenthesis 60 space plus thin space 40 right parenthesis space equals space 100 cubed 100 cubed minus space 60 cubed space minus space 40 cubed space equals space 300 cross times 60 cross times 40 space equals space 720000

Answered by Dharma Teja | 17th Sep, 2014, 11:34: AM

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