Answer:

Step-by-step explanation:
How do we find the line that's perpendicular to another?
We find the negative reciprocal. So for example if our slope is 2, the negative reciprocal would be
.
Answer:
Step-by-step explanation:
we know that
----> equation A
Find the value of
Remember that
----> equation B
substitute equation A in the equation B
therefore
Answer:
cos^-1(12/13) = x
Step-by-step explanation:
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