Trigonometrymedium · Past Paper
If cos A = 4/5, find the value of tan A.
A3/5
B3/4
C4/3
D5/3
✓ Correct Answer: B — 3/4
If cos = 4/5, p = sqrt(5^2 - 4^2) = 3. tan = p/b = 3/4.
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