If X=2- under root 3 find the value of (x-1/x) cube
Answers
Answered by
3
given x= 2-√3
then 1/x= 1/(2-√3) = (2+√3)/(2-√3)(2+√3)
= -(2+√3)
hence x-1/x = 2-√3 -(-(2+√3)) = 4
hence the answer is 4
then 1/x= 1/(2-√3) = (2+√3)/(2-√3)(2+√3)
= -(2+√3)
hence x-1/x = 2-√3 -(-(2+√3)) = 4
hence the answer is 4
Similar questions