1.

What is the value of \(\frac{{1 + a}}{{{a^{1/2}} + {a^{ - 1/2}}}} - \frac{{{a^{1/2}} + {a^{ - 1/2}}}}{{1 + a}} + {a^{ - 1/2}}?\)

A. √a
B. 1/√a
C. √a + 1
D. √a – 1
Answer» B. 1/√a


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