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19-04-2017
Mathematics

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Cot(pi/2-x)/Cosx

**I know that the answer to the problem is tanxsecx, but how do you get to that answer??

Respuesta :

ghanami ghanami

19-04-2017

hello :
Cot(pi/2-x)= tanx
Cot(pi/2-x)/Cosx = tanx/cosx =tanx ×(1/cosx) = tanx ×secx
because 1/cosx = secx

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