Question

$\frac{ 1 - { \tan }^{2}45\% }{1 + { \tan }^{2} 45\% }$
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Answer 1

Answer:

1-tan²45/(1+tan²45)

(1-(1)²)/(1+(1)²)

0/2

= 0

Answer 2

Answer is........

tan 45=1

1-1÷1+1 = 0

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