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

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

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

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

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

koli123ableBest ResponseYou've already chosen the best response.0
which side to choose?
 one year ago

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

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

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

koli123ableBest ResponseYou've already chosen the best response.0
is that an identity cot x tanx =1 ??
 one year ago

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

noureddine92Best ResponseYou've already chosen the best response.0
cosx/sinx =sinx/cosx
 one year ago

noureddine92Best ResponseYou've already chosen the best response.0
cos^2x + sin^2x / cosx sinx
 one year ago
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