solve with explanation
Attachments:
souravsarkar045:
what is the final answer ?
Answers
Answered by
0
2a - 2/a+3=0
or,2a² - 2/a+3=0
or,2a² + 3a - 2=0
or,2a² + 4a - a - 2=0
or,2a(a+2) -1(a+2)=0
or,(a+2) (2a -1) =0
∴a+2=0
∴a= - 2
then,
a³ - 1/a³+2
= - 2³ -( -1/2³)+2
= - 8 +1/8 +2
= - 64+1+16/8
= - 63+16/8
= - 47/8
or,2a² - 2/a+3=0
or,2a² + 3a - 2=0
or,2a² + 4a - a - 2=0
or,2a(a+2) -1(a+2)=0
or,(a+2) (2a -1) =0
∴a+2=0
∴a= - 2
then,
a³ - 1/a³+2
= - 2³ -( -1/2³)+2
= - 8 +1/8 +2
= - 64+1+16/8
= - 63+16/8
= - 47/8
wrong answer
what will be the right ans?
-47 divided by 8
yeah..that was my mistake of '+' '- '
Answered by
2
here is your solution..see this..
Attachments:
good work
Similar questions
Math,
8 months ago
History,
8 months ago
English,
1 year ago
Biology,
1 year ago
Environmental Sciences,
1 year ago