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The curves y = x and y = x² meet at (1, 1). If θ is the angle between them, tan θ equals
A1/2
B1/3
C3
D2/3
Answer & Solution
Correct answer: B. 1/3
The tangent slopes are 1 and 2, so tan θ = (2 − 1)/(1 + 2) = 1/3.
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