Question

if x is =1/2√7, find the value of x^2-x/ 2✓7 + 1

Answer 1

it is very easy.
x*2-x/2√7+1
putting the value of x
= (1/2√7)*2 - 1/ (2√7)*2 +1
=1/28-1/28 +1
=1 here us your and.

Answer 2

x² - x/2√7 + 1
= (1/2√7)² - (1/2√7)/2√7 +1
= 7/4 - 7/4 + 1
= 0 + 1
= 1