Question

A+b=c+d=ab=cd=4n a, b, c, d -?

Answer 1

Ответ:

A = 2 1/5

B = 2 3/5

C = 4 2/5

D = 6 3/5

(C+D) - (A+B)= 6 1/5

Объяснение:

C+D= 4 2/5 + 6 3/5 = 10 5/5

A+B= 2 1/5 + 2 3/5 = 4 4/5

CD - AB = 10 5/5 - 4 4/5 = 6 1/5

Answer 2

It seems like you've provided a set of equations and constraints involving four variables, $a$, $b$, $c$, and $d$:

1. $a + b = c + d$
2. $ab = cd$
3. $a + b = 4n$
4. $c + d = 4n$
5. $ab = 4n$
6. $cd = 4n$

From these equations, we can make some observations:

From equations 3 and 5, we have: $ab = a + b$

Similarly, from equations 4 and 6, we have: $cd = c + d$

Now, let's try to express $c$ and $d$ in terms of $a$ and $b$:

From equation 2, we can write: $c = \frac{ab}{d}$

Substitute this into equation 1: $a + b = \frac{ab}{d} + d$

Multiply both sides by $d$ to get: $ad + bd = ab + d^2$

Rearrange the terms: $d^2 - bd - ad + ab = 0$

Now, let's consider equation 5 again: $ab = 4n$. Substituting this into the equation above gives: $d^2 - bd - ad + 4n = 0$

This is a quadratic equation in terms of $d$. Solving for $d$ might not yield a simple solution, and similarly for $c$. The relationships you've provided involve multiple constraints, but a unique solution might not be easily determined without more information or specific values for $n$, $a$, $b$, $c$, or $d$.

Please provide more context or specific values if you're looking for a particular solution.