Question

give the answer fast by pic and correct ​

Answer 1

Answer:

dont know hdiaiajaggaksosozhshs

Answer 2

Step-by-step explanation:

i) a+1/a=?

(a+1/a)²=a²+1/a²+2

=> a²+1/a²=(a+1/a)²-2

Given: a²+1/a²=18

=> (a+1/a)²-2=18

=> (a+1/a)²=16

=> a+1/a=4

ii) a-1/a=?

(a-1/a)²=a²+1/a²-2

Given: a²+1/a²=18

=>(a-1/a)²=18-2

=>(a-1/a)²=16

=> a-1/a=4