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A binary operation * is defined by a * b = a + b − ab. The value of (2 * 3) * 4 is

2220Medium DSSSB TGT Computer Science 0 replies 1 views
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A binary operation * is defined by a * b = a + b − ab. The value of (2 * 3) * 4 is

  • A7
  • B-5
  • C1
  • D11
Correct answer: A

Explanation

2 * 3 = 2 + 3 − 6 = −1, and (−1) * 4 = −1 + 4 − (−4) = 7.
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