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avanturin [10]
3 years ago
10

I can't figure this one out.

Mathematics
1 answer:
Mkey [24]3 years ago
3 0

Answer:

Option D. tan 225° is the correct answer.

Step-by-step explanation:

As we know tan2A = \frac{2tanA}{1-tanx^{2}A }

Given in the question angle A = 112.5°

Hence the formula becomes as

tan2(112.5)=\frac{2tan( 112.5)}{1-tan^{2}(112.5) }

Therefore its a formula of tan2(112.5) = tan 225°

Option D. is the correct answer.

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