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An interesting mathematical concept which very few of us question and just accept it as a very basic fact - Why is a negative number multiplied by a negative number yield a positive result. Prove it mathematically.
(-1) (1 + -1)= (-1)(0)=-1(1) + (-1) (-1) = 0 = -2. OOPS. So, - & - has to be +
shankha subhra sarkar: sir this question can be proved like: 3*-3=-9 2*-2=-4 1*-1=-1 0*0=0 -1*-1=1 -2*-2=4 -3*-3=6 so sir if we follow this pattern we can get a prove. moreover it can be proved with the help of distributive property.
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