ANSWER

EXPLANATION
We want to find the difference;

This are like fractions or equivalent fractions.
We keep one of the denominators and subtract the numerators.
The difference is:

Note that, we cannot simplify this further.
So we live the difference as it is.
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Answer:
This statement is true for any N vectorial space.
By definition u·v=|u|·|v|·cos(α), where α is the angle between u and v.
If -1≤cos(α)≤1, we can assume:
|u·v|=||u|·|v|·cos(α)|=|u|·|v|·|cos(α)|≤|u|·|v|
Answer:
x(4x + 3)(4x + 1).
Step-by-step explanation:
16x^3 + 16x^2 + 3x
First take out the x:
= x(16x^2 + 16x + 3)
= x(16x^2 + 4x + 12x + 3)
= x(4x(4x + 1) + 3(4x + 1))
= x(4x + 3)(4x + 1) (answer).
Answer:
Step-by-step explanation: If two pairs of corresponding angles in a pair of triangles are congruent, then the triangles are similar.