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koli123able
 2 years ago
Prove:
cotx+tanx=cotx * sec^2x
koli123able
 2 years ago
Prove: cotx+tanx=cotx * sec^2x

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

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

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

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

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

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

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

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

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

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

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

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