Question

if a-1/a=3, find value of a^2+1/a^2​

Answer 1

Answer:

5 is the answer

Step-by-step explanation:

a-1/a=3

a - 1 = 3a

a - 3a = 1

-2a = 1

a = -1/2

put value of a in a² + 1/a²

(-1/2)² + 1/(-1/2)²

(1/4 +1)/ 1/4

(1 +4)/4 x 4

5/4 x 4

= 5

Answer 2

Answer:

a=1

Step-by-step explanation:

1. a=1/a=3 a-1=3a a-3 a=1 -2 a= -1/2 put value of a in a2+1/a2 (-1/-2) 2 +1(-1/2)2 (1/4+1) /1/4 (1+4) 4×4 5/4×4 =5 anwer=5