Question

Rationalise: 4 root5/ 3 root7

Answer 1

Answer:

Step-by-step explanation:

(4 + \sqrt{5} ) \times ( \sqrt{3} - \sqrt{7} )(4+

5

)×(

3

−

7

)

4 \sqrt{3} + \sqrt{15} - 4 \sqrt{7} - \sqrt{35}4

3

+

15

−4

7

−

35

\begin{gathered}6.92+ 3.87 - 10.58 - 5.91 \\ = 10.79 - 16.49 \\ = - 5.7\end{gathered}

6.92+3.87−10.58−5.91

=10.79−16.49

=−5.7

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