Question

If a = 2 + √3 then the value of a + 1/a will be equal to​

Answer 1

$\huge\pink{\boxed{\green {\mathbb{\overbrace {\underbrace{\fcolorbox{red}{aqua}{\underline{\pink{answer }}}}}}}}}$

Given that,

a=2+3

Then, Value of

  a−a1=2+3−2+31

 =2+3−2+31×2−32−3onrationalize

 =2+3−4−3(2−3)

 =2+3−2+3

 =23

Hence, this is the answer.

Answer 2

Required Solution:-

a=2+3

Then, Value of

a−a1=2+3−2+31

=2+3−2+31×2−32−3onrationalize

=2+3−4−3(2−3)

=2+3−2+3

=23