Question

write the cube of 3a +1/3a please answer only if u know it it is very important

Answer 1

Step-by-step explanation:

(3a + 1/3a)³

we know the (a+b)³ = a³ + b³ 3ab(a+b)

= (3a)³ + (1/3a)³ + 3(3a)(1/3a)(3a + 1/3a)

= 9a³ + 1/9a³ + 3(3a + 1/3a)

= 9a³ + 1/9a³ + 3a + 1/3

= 9a³ + 1/9a³ + 3a/3 + 1/3

= 9a³ + 1/9a³ + a + 1/3

Hope it helps you...