Simplify a^2 +1/a with a rational denominator where a= root5 -1 showing full working. Please if anyone can help, it would be great.
Alice our purpose is to eliminate the surds from the denominator...
if you have a^2 alone and then 1/a a fraction alone then no problem multiply the fraction only by (root5 +1) (num +denom) and then expand a^2 and add them all together