SOLUTION: Given cosA=16/65 and that angle A is in Quadrant I, find the exact value of cotA in simplest radical form using a rational denominator.

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Question 1095371: Given cosA=16/65 and that angle A is in Quadrant I, find the exact value of
cotA in simplest radical form using a rational denominator.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
If I say +a is the vertical component of the angle A
+65%5E2+=+16%5E2+%2B+a%5E2+
+a%5E2+=+4225+-+256+
+a%5E2+=+3969+
+a+=+63+
and
+cot%28A%29+=+16%2F63+
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check the math