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OpenStudy (anonymous):
evaluate... tan(x-y) if tan x= -12/5 and tan y=-4/-3. The formula we have to use is tan x-tan y / 1 + tan x tan y
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OpenStudy (raden):
just substitute of them to that formula :)
OpenStudy (anonymous):
i dont know how to work with fractions, the answer im getting isnt the one in the answer key
OpenStudy (raden):
well, i want to show for u how would be the answer |dw:1354480883181:dw|
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