Question

Guys help yrr kal paper hai final 9th ka maths ka...plzzz help​

Answer 1

Answer:

$\frac{7 + \sqrt{5} }{7 - \sqrt{5} } - \frac{7 - \sqrt{5} }{7 + \sqrt{5} } \\ taking \: lcm \\ \frac{ {(7 + \sqrt{5 } )}^{2} - ( {7 - \sqrt{5}) }^{2} }{(7 - \sqrt{5})(7 + \sqrt{5} ) } \\ \frac{ {7}^{2} + { (\sqrt{5}) }^{2} + 14 \sqrt{5} - {7}^{2} - { (\sqrt{5} )}^{2} + 14 \sqrt{5} }{ {7}^{2} - { (\sqrt{5} )}^{2} } \\ \frac{28 \sqrt{5}}{44} \\ \frac{7 \sqrt{5} }{11 } = a + \frac{7 \sqrt{5} b}{11} \\ on \: comparing \\ a = 0 \: and \: b = 1$

Here is solution.....

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