Question

17/5+√7 Rationalise the denimatot

Answer 1

Answer:

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jsjzkzk.jxhxjxj.

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Step-by-step explanation:

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Answer 2

The value of expression is $\frac{85-17\sqrt{7}}{18}$.

Step-by-step explanation:

The expression is:

$\frac{17}{5+\sqrt{7}}$

Rationalise the expression as follows:

$\frac{17}{5+\sqrt{7}}\times \frac{5-\sqrt{7}}{5-\sqrt{7}}=\frac{17(5-\sqrt{7})}{(5)^{2}-(\sqrt{7})^{2}}$

                     $=\frac{85-17\sqrt{7}}{25-7}$

                     $=\frac{85-17\sqrt{7}}{18}$

Thus, the value of expression is $\frac{85-17\sqrt{7}}{18}$.

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