please help me to solve question no. 35
Attachments:
Answers
Answered by
2
a- 1/a =5
(a-1/a)^2 = a^2 + 1/ a^2 -2
5^2 +2 =a^2 + 1/a^2
27 = a^2 + 1/a^2
now
a^2 + 1/a^2 - 3( a-1/a) =27 -3×5
27 -15 =12 answer
(a-1/a)^2 = a^2 + 1/ a^2 -2
5^2 +2 =a^2 + 1/a^2
27 = a^2 + 1/a^2
now
a^2 + 1/a^2 - 3( a-1/a) =27 -3×5
27 -15 =12 answer
Similar questions