MathematicsMedium129×since 2002Q5124If x is a solution of the equation, 2x+1\sqrt {2x + 1}2x+1 −2x−1=1,- \sqrt {2x - 1} = 1,−2x−1=1, (x≥12),\,\,\left( {x \ge {1 \over 2}} \right),(x≥21), then 4x2−1\sqrt {4{x^2} - 1}4x2−1 is equal to :A34{3 \over 4}43B12{1 \over 2}21C2D222\sqrt 222Check answerSkip