A ball is drawn at random from a box containing 6 red balls, 4 white balls and 5 blue
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To prove that tan(u - v) does not equal tan u - tan v, we start by assuming values for u and v.
To do this, we assume the following values
So, we have:
Substitute the assumed values for u and v
Subtract 45 from 75
Using a calculator, calculate the values of tan(30), tan(45) and tan(75)
So, we have:
Subtract 1 from 3.7321
Notice that the expression on the left-hand side and the expression on the right-hand side are not equal.
Hence, is true
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