Question 107

If X* Y = $$X^2 + Y^2 - XY$$ then 11 * 13 is

Solution

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it is given that X* Y = $$X^2 + Y^2 - XY$$

we need to calculate 11*13

11*13 = $$11^2 + 13^2 - 11x 13 $$

= 147

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