Using identities, evaluate:2.02 sq-0.98 sq
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Ans: a^2 - b^2 = ( a+b)(a-b)
= (2.02)^2 - (0.98)^2
= ( 0.02 + 0.98) (0.02 - 0.98)
= (1) (- 0.96)
= −0.96
Hope it helps...!!
= (2.02)^2 - (0.98)^2
= ( 0.02 + 0.98) (0.02 - 0.98)
= (1) (- 0.96)
= −0.96
Hope it helps...!!
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