Question

A is equal to 8 plus root 60 find root a plus 1 by root a

Answer 1

Hello Mate here is your answer,

Given here a = 8+√60

Then question is,. a+1/a=?

Now solution is

$a = 8 + \sqrt{60} \\ a + \frac{1}{a} \\ (8 + \sqrt{60} ) + \frac{1}{(8 + \sqrt{60} )} \\ \frac{(8 + \sqrt{60})(8 + \sqrt{60} ) + 1}{8 + \sqrt{60} } \\ \frac{64 + 8 \sqrt{60 } + 8 \sqrt{60} + 60 + 1 } {8 + \sqrt{60} } \\ \frac{125 + 16 \sqrt{60} }{8 + \sqrt{60} }$

I hope that helps you,

Answer 2

A=8+√60

=8+7.74

=15.74

A+1 15.74+1 15.74+1

So,———=—————=—————

√A √15.74 3.96

=3.97+1[By cancelling 15.74 & 3.96]

=4.97

=4

Ans:4.