If a-1/a=8 and a≠0;find: a+1/a
sankalpa85:
a+1/a=-6
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whats wrong in my answer
Answers
Answered by
73
Heya
_______________________________
( a +1/a )² = ( a - 1/a )² + 4
=>
( a +1/a )² = ( 8 )² + 4
=>
( a +1/a )² = 68
=>
( a + 1/a ) = √(68)
OR
( a +1/a ) = -√(68)
_______________________________
( a +1/a )² = ( a - 1/a )² + 4
=>
( a +1/a )² = ( 8 )² + 4
=>
( a +1/a )² = 68
=>
( a + 1/a ) = √(68)
OR
( a +1/a ) = -√(68)
Answered by
3
Above is your answer
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