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Answer:
r = 105.
Step-by-step explanation:
In the quadratic formula, √r =
Where a = 1, b = -9, and c = -6. Therefore:
√r = √(-9)² - 4(1)(-6)
√r = √81 -4(-6)
√r = √81 + 24
√r = √105
Therefore, r = 105.
Answer:
a) See proof below
b)The result does not violate uniqueness of solutions.
Step-by-step explanation:
a)
Suppose is a solution of
then
If is a solution of
then
To show that is a solution of equation (2) we have to show that
But
which is what we wanted to show.
b)
The results of the above problem does not violate uniqueness of solutions, because the solution is unique for each specific given initial condition, but there are no initial conditions stated.