Question

1-tansq45°\1+tansq45°=??
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Answer 1

Step-by-step explanation:

tan 45= 1

$= \frac{1 - {(1)}^{2} }{1 + {(1)}^{2} }$

$= \frac{1 - 1}{1 + 1} = \frac{0}{2} = 0$