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Alienchild239
26.06.2019 •
Mathematics
Can someone write the ratios for sin x,cos x and tan x
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Ответ:
see explanation
Step-by-step explanation:
For the right triangle
sinx =
=
= ![\frac{\sqrt{5} }{3}](/tpl/images/0017/9851/f74de.png)
cosx =
=
= ![\frac{2}{3}](/tpl/images/0017/9851/d1391.png)
tanx =
=
= ![\frac{\sqrt{5} }{2}](/tpl/images/0017/9851/79520.png)
Ответ:
x+y=7
y = -x + 7
x+y=3
y = -x + 3
these both have slope -1 so are parallel. that's the
answer: last choice