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2 votes
HHHEEELLLPPPP MJLTIPLE CHOICE!!

-tan x - cot x =

cosx+sinx
secx+cscx
cosxsinx
-secxcosx

1 Answer

3 votes
1. -tanx = cotx
2. -sinx / cosx = cosx / sinx
3. -sin2x = cos2x
4. -sinx = cosx
5. cosx+sinx

Answer is A
User Mehboob
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