71). The ratinalising factor of \( \Large 3\sqrt{3} \) is:
A). \( \Large \frac{1}{3}\) |
B). 3 |
C). -3 |
D). \( \Large \sqrt{3} \) |
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72). \( \Large \sqrt{2+\sqrt{2+\sqrt{2+...}}} \) is equal to:
A). \( \Large \sqrt{2} \) |
B). \( \Large 2\sqrt{2}\) |
C). 2 |
D). 3 |
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73). The value of\( \Large 2+\sqrt{0.09}-\sqrt[3]{0.008}-7%\) of 2.80 is:
A). 0 |
B). 0.01 |
C). -1 |
D). 0.001 |
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74). The value of \( \Large \left(\sqrt[3]{3.5}+\sqrt[3]{2.5}\right) \{ \left(\sqrt[3]{3.5}\right)^{2}-\sqrt[3]{8.75} + \left(\sqrt[3]{2.5}\right)^{2} \} \) is:
A). 5.375 |
B). 1 |
C). 6 |
D). 5 |
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75). The value of \( \Large \left(3+2\sqrt{2}\right)^{-3}+ \left(3-2\sqrt{2}\right)^{-3} \) is:
A). 189 |
B). 180 |
C). 108 |
D). 198 |
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76). \( \Large \frac{\sqrt{5}}{\sqrt{3}+\sqrt{2}}-\frac{3\sqrt{3}}{\sqrt{5}+\sqrt{2}}+\frac{2\sqrt{2}}{\sqrt{5}+\sqrt{3}} \) is equal to:
A). 0 |
B). \( \Large 2\sqrt{15} \) |
C). \( \Large 2\sqrt{10} \) |
D). \( \Large 2\sqrt{6} \) |
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77). The value of \( \Large \frac{1}{\sqrt{3.25}+\sqrt{2.25}}+\frac{1}{\sqrt{4.25}+\sqrt{3.25}}+\frac{1}{\sqrt{5.25}
+\sqrt{4.25}}+\frac{1}{\sqrt{6.25}+\sqrt{5.25} }\) is:
A). 1 |
B). 1.25 |
C). 1.5 |
D). 2.25 |
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78). \( \Large \frac{3^{0}+3^{-1}}{3^{-1}-3^{0}} \) is simplified to:
A). -2 |
B). -1 |
C). 1 |
D). 2 |
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79). \( \Large \frac{10.3 \times 10.3 \times 10.3+1}{10.3 \times 10.3-10.3+1} \) is equal to:
A). 9.3 |
B). 10.3 |
C). 11.3 |
D). 12.3 |
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80). \( \Large \frac{1.49 \times 14.9-0.51 \times 5.1}{14.9-5.1} \) is equal to:
A). 0.2 |
B). 20 |
C). 2 |
D). 22 |
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