Without using calculating devices, compute the following correct to two decimals.

(i)

(ii)

(iii)

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Solution

(i)

Thus, is approximately equal to 11.28.

(ii)

Thus, is approximately equal to 29.61.

(iii)

Thus, is approximately equal to 1.73.

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Similar questions

The following table gives some of the powers of 2.

Can you compute the products using the table.

(i) 16 × 64

(ii) 32 × 512

(iii) 64 × 256

(iv) 128 × 256

\frac{\sqrt{48} + \sqrt{32}}{\sqrt{27} + \sqrt{18}}

The value of $\frac{\sqrt{48} + \sqrt{32}}{\sqrt{27} + \sqrt{18}}$ is

\frac{\sqrt{48} + \sqrt{32}}{\sqrt{27} - \sqrt{18}}

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