Question

if 2a+1/2a=2 then the value of a3+1/64a3​

Answer 1

Answer:

2a+1/2a = 2

(4a²+1)/2a = 2

4a²+1 = 4a

4a²+1 - 4a = 0

(2a-1)² = 0

2a-1 = 0

2a = 1

a = 1/2

putting the value of a in a³+ 1/64a³

= ( 1/2 )³ + 1/64(1/2)³

= 1/8 + 1/64(1/8)

= 1/8 + 1/8

= 2/8

= 1/4