Using suitable identity and not directly multiplying find find the value of (0.99×1.01)
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(0.99×1.01)=(1.00-0.01)(1.00+0.01)
it is of the form (a+b) (a-b)
using suitable identity(a+b) (a-b)=a^2-b^2
(1.00-0.01)(1.00+0.01)=1^2-0.01^2
=1-0.0001
=0.9999
it is of the form (a+b) (a-b)
using suitable identity(a+b) (a-b)=a^2-b^2
(1.00-0.01)(1.00+0.01)=1^2-0.01^2
=1-0.0001
=0.9999
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