Please solve fast, I requires it urgently. (Hint : Ans ― p=0 & q=-1/11)
Attachments:
Answers
Answered by
0
Step-by-step explanation:
(7+√5)/(7-√5) - (7-√5) / (7+√5) = p - 7√5 q
=> (7+√5) (7+√5) / (7-√5)(7+√5) - (7-√5)²/(7 - 5)
[ rationalise the denominator of both fractions ]
=> (7+√5)²/(49 - 5) - (7-√5)²/ (49 - 5)
=> (49 + 5 +14√5)/44 - (49 + 5 - 14√5)/44
=> (54 + 14√5 - 54 + 14√5) / 44
=> 28√5 /44
=> 14√5 / 22
=> 7√5 / 11
=> 0 - (7√5)*(-1/11)
=> p - 7√5 q
on comparing we get p = 0 and q = - 1/11
Similar questions