Find the value of: (1/(5 - √6)) + (1/(5 + √6)) – (10 / (25 - 6))
Show answer & explanation
Correct answer: A
Explanation
(1/(5 − √6)) + (1/(5 + √6)) − (10/(25 − 6))
[(5 + √6) + (5 − √6)] / [(5 − √6)(5 + √6)] − (10 / 19)
= 10 / (25 − 6) − (10 / 19)
= 10 / 19 − (10 / 19) = 0