# Resistors

Two resistors connected in series give the resulting resistance 216Ω and 48Ω in parallel. Determine the resistance of this resistors.

Result

R1 =  72 Ω
R2 =  144 Ω

#### Solution:

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Be the first to comment!

#### To solve this example are needed these knowledge from mathematics:

Looking for help with calculating roots of a quadratic equation? Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

## Next similar examples:

1. Equation
Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
2. Discriminant
Determine the discriminant of the equation: ?
3. Roots
Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
4. Water reservoir
The cuboid reservoir contains 1900 hectoliters of water and the water height is 2.5 m. Determine the dimensions of the bottom where one dimension is 3.2 m longer than the second one.
Determine the numbers b, c that the numbers x1 = -1 and x2 = 3 were roots of quadratic equation: ?
6. Theorem prove
We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
8. Solve 3
Solve quadratic equation: (6n+1) (4n-1) = 3n2
9. Equation
Eequation f(x) = 0 has roots x1 = 64, x2 = 100, x3 = 25, x4 = 49. How many roots have equation f(x2) = 0 ?
10. Fraction
For what x expression ? equals zero?