devsoni663 devsoni663

15-10-2020
Mathematics

contestada

If a+1/a=3 then find the value of a³+1/a³

Respuesta :

IronWithFist IronWithFist

15-10-2020

Answer:

9

Step-by-step explanation:

1.Solve the equation

a + 1/a = 3

a + 1 = 3a

2a = 1

a = 1/2

2. Replace 1/2 for a

1/2^3+1/1/2^3

1/8 + 1/1/8

1 1/8 divided by 1/8 = 9

Answer Link

Otras preguntas

sebuah prisma yang alasnya berbentuk persegi dimasukkan ke dalam tabung sehingga tepi-tepi pojok prisma berimpit dengan dinding tabung. Diameter alas tabung 14

Find the quotient 16.5 ÷ 100

The cost of membership at local country club is $125 per family member per month. Each family also has to pay $75 in service fees. Model the cost, C, for a memb

Another wildfire spread for 7 days and covered a total of 780 square miles. How can you estimate the number of square miles the fire covered per day?

Prove that 3:8 is equivalent to 12:32 use diagram

If the chemical enzyme pepsin was mixed with some proteins in a test tube in a laboratory, which of these outcomes would you predict? A)Pepsin would probably NO

Is it possible to draw three points that are noncoplanar

What does central idea mean?

isolated points are called

Use compatible numbers to estimate the quotient. 486/6