Find the sum or difference:
1 answer:
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For this case we have that, by definition, the slope of a line is given by:
Where:
They are points through which the line passes.
According to the figure we have that the line goes through the following points:
Substituting in the equation we have:
Thus, the slope of the line is:
Answer:
Answer:
Step-by-step explanation:
We want to write the trignometric expression:
As an algebraic equation.
First, we can focus on the inner expression. Let θ equal the expression:
Take the secant of both sides:
Since secant is the ratio of the hypotenuse side to the adjacent side, this means that the opposite side is:
By substitutition:
Using an double-angle identity:
We know that the opposite side is √(u² -100), the adjacent side is 10, and the hypotenuse is u. Therefore:
Simplify. Therefore: