Question

14. If x* y = x2 + y2 -xy then the value of 9 * 11 is
(A) 103 (B) 112 (C) 127 (D) 200​

Answer 1

Step-by-step explanation:

x*y =>

${x}^{2} + {y}^{2} - xy$

So 9*11 =>

${9}^{2} + {11}^{2} - 9 \times 11 = 81 + 121 - 99$

So the answer is 103. option (A) is correct. Hope it helps you.

Answer 2

The correct option for this expression is (A) 103.

Given,

x × y = x² + y² - xy.

To Find,

Value of 9×11 in the given expression.

Solution,

The value given is 9 × 11.

we will put  9 in place of x.

11 in place of y in the above expression,

x × y = 9² + 11² - 9×11

= 81 + 121 - 99

= 202 - 99

= 103.

The correct option for this expression is (A) 103.

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