Cot x = cos x csc x
1/tan x = cosx (1/sin x)
1/(sin x / cos x) = cos x / sin x
cos x / sin x = cos x / sin x
The domain of validity is all real number values of x except for sin x = 0.
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Answer:
-2/5
Step-by-step explanation:
The slopes of parallel lines are the same. The slope of the given line is -2/5, the coefficient of x.
The slope of a parallel line is -2/5.