Solving Complex Fractions: Equivalent Polynomial/Rational Expressions (Grade 12)

[Mach]

please help me with this quest i cannot figure it out (please show your work thanks!) sry i made a mistake this is not algebra. it is sloving complex fractions

Determine a polynomial or rational algebraic expression in simple form equivalent to each of the following: C3

1+(a+a^-1)^-1



















the answer is (a^2+a+1)/(a^2+1)

 

[quasar987]

Each time you encounter addition of fraction, put them on the same denominator. In the end, you'll have (somthing)/(something), which is the goal of the exercice.

 

[HallsofIvy]

Do you know what a^-1 means?

 

[Mach]

yes i do it means 1/a

i just can't get the answer. i have to go to school now so ill post my work when i get home