Question
If tan(π/4 + θ) = 3, find
tan(2θ):Solution
tan(π/4 + θ) = (1 + tan θ) / (1 - tan θ) = 3. Solving, tan θ = 1/2. tan(2θ) = (2 × 1/2) / (1 - (1/2)^2) = 4/3. Correct option: d) 4/3
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