So, Cot is negative in second and fourth quadrant.
So, tan(x+)=-cot(x)
Option B
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Answer:
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I counted the squares.
Step-by-step explanation:
45°, 45°, 90° triangle theorem states that:
Lengths of the sides opposite to the 45° angle are equal to one upon root two times of the length of hypotenuse.
Mathematically it can be expressed as: