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Mathematics
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sin ( a + b ) / cos a cos b
|dw:1360612896526:dw|
is that what you needed or are you saying

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Other answers:

|dw:1360612985267:dw|
The last one, \[\frac{ \sin ( a + b ) }{ \cos a \cos b }\]
so you need to simplify?
|dw:1360613311639:dw|
sin(a+b)=sinacosb + cosasinb so i replaced it
& then what do I do to that?
|dw:1360613737294:dw|
|dw:1360613941761:dw|
what is sina/cosa and sinb/cosb
Is it tan a + tan b?
yes!
Got it.!
I am happy to hear it!
;)

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