Question
If 2 * 3 =
√ 12
and 3 * 4 = 5, then the value of 5 * 12 is
If 2 * 3 =
√ 12
and 3 * 4 = 5, then the value of 5 * 12 is
Answer: Option A
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Clearly, a * b =
√ a2 + b2.
Therefore, 5 * 12=√ 52 + 122.
=>√ 25 + 144.
=>√ 169.
=>13.
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