Question

of a-1/a=4. Find a qube - 1/a raise to 3​

Answer 1

Answer:

find x, if 9 × 3× = (27)²×-³evaluate 1) [(-¾)-²]²Causes and consequences of the french revolution and how this had a foundation for the modern democracies.

Answer 2

Given :-

• a-1/a-4....(1)

To Find :-

• a³-1/a³ = ?

Solution :-

we know,

➜ (x-y)³ = x³-y³-3x²y+3xy²

So,

➜(a-1/a)³

➜a³-1/a³-3xa²x1/a+3xax1/a²

➜a³-1/a³-3[a-1/a]

put value by (1)

we get

➜(4)³=(a³-1/a³)-3(4)

➜64=(a³-1/a³)-12

➜64+12=(a³-1/a³)

➜(a³-1/a³) = 76