Trigonometric Identities Question 34
Question: $ \frac{\cos 10^{o}+\sin 10^{o}}{\cos 10^{o}-\sin 10^{o}}= $
[MP PET 2002]
Options:
A) $ \tan 55^{o} $
B) $ \cot 55^{o} $
C) $ -\tan 35^{o} $
D) $ -\cot 35^{o} $
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Answer:
Correct Answer: A
Solution:
$ \frac{\cos 10^{o}+\sin 10^{o}}{\cos 10^{o}-\sin 10^{o}} $ $ =\tan (45^{o}+10^{o})=\tan 55^{o} $ .
BETA
