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cos(alpha+beta)+sin(alpha-beta)=0"and"ta...

`cos(alpha+beta)+sin(alpha-beta)=0"and"tanbeta=1/2009` ,find tan(alpha)

A

2

B

-1

C

3

D

4

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The correct Answer is:
B
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VIKAS GUPTA (BLACK BOOK) ENGLISH-COMPOUND ANGLES-Exercise-5 : Subjective Type Problems
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