Question 1 Report
Evaluate x2(x2 - 1)-12 1 2 - (x2 - 1)12
Answer Details
x2(x2 - 1)-12 1 2 - (x2 - 1)12 1 2 = x2(x2?1)12 x 2 ( x 2 ? 1 ) 1 2 - (x2?1)121 ( x 2 ? 1 ) 1 2 1 = x2?(x2?1)(x2?1)12 x 2 ? ( x 2 ? 1 ) ( x 2 ? 1 ) 1 2 = x2?x2+1(x2?1)12 x 2 ? x 2 + 1 ( x 2 ? 1 ) 1 2 = (x2 - 1)-12