using the identity find the value of (97)^3
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(97)^3 =(100-3)^3= identity used (a-b) ^3...
= a^3 - b^3 - 3ab(a-b)
= (100)^3 - (3)^3 - 3(100)(3)(100-3)
= 1000000 - 27 - 3(300)(97)
=1000000 - 27 - 87300
=1000000 - 87327
= 912673 ans....
hope it will help you...
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