Question

if a^2+1/a^2=18,find the value of a+1/a and a-1/a

Answer 1

hey your ans is here!

Answer 2

Answer:

plus or minus 4

Step-by-step explanation:

the following attachment has answer at last u wiil get a^2 +1/a^2 = 16 . then $\sqrt a^2 +1/a^2 = \sqrt 16$ = 4