Identify the conjugate of .

MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

Identify the conjugate of 4−74 - \sqrt{7}. (a) −4+7-4 + \sqrt{7} (b) −4−7-4 - \sqrt{7} (c) 4+74 + \sqrt{7} (d) 14−7\displaystyle\frac{1}{4-\sqrt{7}}

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