pls.help me with this question
Attachments:
Answers
Answered by
1
1.
1/ a =5+ 2√6
so a + 1/a=10
2 nd
a-1/a=-4√6
3rd
a^2+ 1/a^2=10^2-2=98
4th
a^2-1/a^2=10^2+2=102
5th
(a+1/a)^3=(10)^3=1000
6th
(a-1/a)^3=(-4√6)^3=-64×6√6= -384√6
1/ a =5+ 2√6
so a + 1/a=10
2 nd
a-1/a=-4√6
3rd
a^2+ 1/a^2=10^2-2=98
4th
a^2-1/a^2=10^2+2=102
5th
(a+1/a)^3=(10)^3=1000
6th
(a-1/a)^3=(-4√6)^3=-64×6√6= -384√6
Ronaldo1226:
tell me if i m wrong
actually im in doubt for your 5n6 part
which type of doubt?
the final answer
is it wrong ?
is my answer is wrong?
Similar questions
India Languages,
8 months ago
Physics,
8 months ago
Science,
1 year ago
Physics,
1 year ago
Science,
1 year ago
Social Sciences,
1 year ago