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hartnn
 one year ago
Best ResponseYou've already chosen the best response.2then you can use directly here, tan x cot x =1

klimenkov
 one year ago
Best ResponseYou've already chosen the best response.0All you need to know is the definition of \(\tan x, \cot x, \sec x\) and how to work with fractions.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2yes, so i said to replace sec^2 x by 1+tan^2x

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2can be solved without involving fractions ... :)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2@koli123able did you try ?

koli123able
 one year ago
Best ResponseYou've already chosen the best response.0which side to choose?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2cotx * sec^2x=cotx * (1+tan^2 x) =..... ?

KAOSabdullah
 one year ago
Best ResponseYou've already chosen the best response.0cotx tanx becomes 1

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2cotx+ cotx tan^2x = cot x + tan x (cot x tan x)

koli123able
 one year ago
Best ResponseYou've already chosen the best response.0is that an identity cot x tanx =1 ??

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2absolutely. tan x = 1/cot x so, tan x cot x =1

noureddine92
 one year ago
Best ResponseYou've already chosen the best response.0cosx/sinx =sinx/cosx

noureddine92
 one year ago
Best ResponseYou've already chosen the best response.0cos^2x + sin^2x / cosx sinx
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