The value of $$\frac{{2\sqrt {10} }}{{\sqrt 5 + \sqrt 2 - \sqrt 7 }} - \sqrt {\frac{{\sqrt 5 - 2}}{{\sqrt 5 + 2}}} - \frac{3}{{\sqrt 7 - 2}}{\text{is:}}$$
A. √7
B. 2 + √2
C. √2
D. 2√5
Answer: Option C
This Question Belongs to Arithmetic Ability >> Surds And Indices
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A. $$\frac{1}{2}$$
B. 1
C. 2
D. $$\frac{7}{2}$$
Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:
A. 1.45
B. 1.88
C. 2.9
D. 3.7
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