Evaluate using identities:- (a) 103 X 97 (b) (0.99)(0.99) (c) 105 X 105 X 105
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Answer:
Step-by-step explanation:
) (103)(97)
=(100+3)(100-3)
=(100)2-(3)2
=(100)(100)-(3)(3)
=10000-9
=9991
b) (0.99)(0.99)
=(1.00-0.1)2
=1+0.01-0.2
=1.01-0.2
=0.81
c)(105)(105)(105)
=(100+5)3
=1000000+125+157500
=1057625
aahnapushpa15:
It's square
And cube plz understand that and sorry for that matter
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