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.
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 a3 = 7 and a12 = 3. Calculate s23 (= sum of the first 23 members of the sequence).
- GP - 8 items
Determine the first eight members of a geometric progression if a9=512, q=2
- Five members
Write first 5 members geometric sequence and determine whether it is increasing or decreasing: a1 = 3 q = -2
- Tenth member
Calculate the tenth member of geometric sequence when given: a1=1/2 and q=2
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
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 a1=5.7 and quotient q=-2.5. Calculate a17.
- Quadratic equation
Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
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) = 3n2
Determine the discriminant of the equation: ?
Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?