Find using indentity 194*206
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it is really simple
194=(200-6)
206=(200+6)
194*206=(200-6)(200+6)
here identity used is (a+b)(a-b)=a²-b²
here a=200 and b=6
So ans=200²-6²=40000-36=39964
194=(200-6)
206=(200+6)
194*206=(200-6)(200+6)
here identity used is (a+b)(a-b)=a²-b²
here a=200 and b=6
So ans=200²-6²=40000-36=39964
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