# Three members GP

The sum of three numbers in GP (geometric progression) is 21 and the sum of their squares is 189. Find the numbers.

**Result****Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this verbal math problem are needed these knowledge from mathematics:

## Next similar math problems:

- Theorem prove

We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started? - Geometric sequence 4

It is given geometric sequence a_{3}= 7 and a_{12}= 3. Calculate s_{23}(= sum of the first 23 members of the sequence). - GP - 8 items

Determine the first eight members of a geometric progression if a_{9}=512, q=2 - Five members

Write first 5 members geometric sequence and determine whether it is increasing or decreasing: a_{1}= 3 q = -2 - Tenth member

Calculate the tenth member of geometric sequence when given: a_{1}=1/2 and q=2 - Biquadratic

By introducing a new variable solve biquadratic equation: ? - Six terms

Find the first six terms of the sequence a1 = -3, an = 2 * an-1 - Geometric progression 4

8,4√2,4,2√2 - Computer

The computer was purchased 10000,-. Each year, the price of a computer depreciates always the same percentage of the previous year. After four years, the value of the computer is reduced to 1300,- How many percent was depreciated price of the computer each - Geometric progression 2

There is geometric sequence with a_{1}=5.7 and quotient q=-2.5. Calculate a_{17}. - Quadratic equation

Find the roots of the quadratic equation: 3x^{2}-4x + (-4) = 0. - Calculation

How much is sum of square root of six and the square root of 225? - Solve equation

solve equation: ? - Solve 3

Solve quadratic equation: (6n+1) (4n-1) = 3n^{2} - Discriminant

Determine the discriminant of the equation: ? - Equation

Equation ? has one root x_{1}= 8. Determine the coefficient b and the second root x_{2}. - Roots

Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?