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

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

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

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

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

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

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

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

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