√xyz = t t-1/t = t³ t²=1+t⁴ 1=1/t² + t² t⁴(t⁴+2+1/t⁴)/t⁴ = (t²+1/t²)² =1² = 1 Here is correct answer option B 702 views¶¶∆∆¶¶, 12:32