Question

if a = 2 - √3 find the value of (a − 1/a ) 3​

Answer 1

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