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eroshea Group TitleBest ResponseYou've already chosen the best response.0
\[if x+y=90, then \frac{ sinx tany }{ siny tanx } is equal \to?\]
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
u want answer in terms of x or y ?
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
the possible answers are a. tanx b.1/tanx c.tanx d. 1/tanx
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
given \[x+y=90\] \[\frac{\sin x \tan y}{\sin y \tan x}\ \ \ \ \ \ \ =\] write all in terms of y=90x @eroshea what's sin (90x)??
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
good, so sin y=sin (90x)=cos x similarly change tan y in terms of x
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
i'm confused @.@
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
tan y=tan (90x)=??
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
that's cot y = (tan 90x)
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
good so \[\frac{\sin x \tan y}{\sin y \tan x}\ \ \ \ \ \ \ =\frac{\sin x \cot x}{\cos x \tan x}\ \ \ \ \ \ \ = ?\] Can you simplify this now?
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
owh.. 1/tanx maybe?
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
check again, are you sure?
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
what i got was cosx/sinx =cotx or 1/tanx
 2 years ago

ash2326 Group TitleBest ResponseYou've already chosen the best response.2
you're correct :)
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
thanks! :))
 2 years ago
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