Can you help me with this?
Attachments:
Answers
Answered by
1
Answer:
Step-by-step explanation:
(7 + sqrt(5))/(7 - sqrt(5)) - (7 - sqrt(5))/(7 + sqrt(5)) =
( (7 + sqrt(5))^2 - (7 - sqrt(5))^2) / (7 + sqrt(5)) (7 - sqrt(5)) =
(53 + 14 sqrt(5) - (53 - 14 sqrt(5))) / (49 - 5) =
( 28 sqrt(5) ) / 44 =
(7/11) sqrt(5).
thus p = 0 and q = - (7/11) sqrt(5)
if we have p - q sqrt(5)
Anonymous:
if however we have p - 7sqrt(5)q
then p = 0 and q = -1/11
so p= 0 and q= 1/-11
thanks a lot
no worries
Similar questions