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Finding Square Root through Repeated Subtraction

Evaluate : ...

Question

Evaluate : $\sqrt{1.21} - \sqrt{0.01}$ .

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Solution

$\sqrt{1.21} - \sqrt{0.01}$ = $1.1 - 0.1$ = $1$ .

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Q. The value of

\sqrt{0.01} + \sqrt{0.81} + \sqrt{1.21} + \sqrt{0.0009}

1000 (1 + 0.1 + 0.01 + 0.001)

\sqrt{\frac{1}{4}} + {(0.01)}^{- \frac{1}{2}} - {(27)}^{^{\frac{2}{3}}}

Evaluate:

(i) $l o g_{10} 0.01$

(ii) $l o g_{2} (1 \div 8)$

4.5 $\times$ 1.21 =

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