if x=2+√3 find x-1/x please send correct answer ASAP
Answers
Answered by
2
Answer:
2√3
Step-by-step explanation:
x=2+√3
1/x = 1/(2+√3) = 2-√3 (from rationalising the denominator by multiplying and dividing numerator by 2-√3)
Therefore, x + 1/x = 2 + √3 - (2 -√3)
=2 + √3 - 2 +√3
=2√3
Hope you understood, if yeah, then plz don't forget to mark my answer as the brainliest.
Answered by
2
Answer:
x=2+√3
1/x=1/(2+√3)
=(2-√3)/(2+√3)(2-√3)
=(2-√3)/(2^2-√3^2)
=(2-√3)/(4-3)
=(2-√3)/1
=2-√3
x-1/x=2+√3-(2-√3)=2+√3-2+√3=2√3
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