Question

Спростити вирази 1/(2+✓3) + 1/(2-✓3)

Answer 1

(2-√3+2+√3)/4-3= 4/1= 4
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Answer 2

1/(2+√3) + 1/(2-√3) = ((2+√3)+(2-√3)) / ((2+√3)*(2-√3)) = 4 / (4-3) = 4/1 = 4