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Xy=18 and X square + Y square is equal to 45 find the value of x - Y |
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Answer» x-y)=3step by step explanationWe KNOW that (x-y)^2= x^2+y^2-2xygiven that, x^2+y^2=45 and xy=18 PUTTING the above values in the formula we get, (x-y)^2= 45-2(18) =45-36 = 9 (x-y)=✓9 (x-y)=3 |
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