Trigonometrymedium · Past Paper

What is the value of tan(45° - A) if tan A = 1/3?

A1/2
B1
C2
D2/3

✓ Correct Answer: A1/2

tan(45-A) = (1 - 1/3) / (1 + 1*1/3) = (2/3) / (4/3) = 1/2.

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