# If sinA = 1/2, cosB = 12/13, where π/2<A < π And 3π/2 <B < 2π, find tan(A -B).

Given sinA = 1/2 And cosB = 12/13 where π/2 <A < π And 3π/2 <B < 2π

In the second quadrant, the sine function is positive And cosine And tan functions negative.

In the fourth quadrant, sine And tan functions are negative, And cosine function are positive.

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