Question

Asked Oct 27, 2019

19 views

see attachment

Step 1

Since tan x = 1/2

and tan x=opposite/adjacent

Let opposite = -1 [because of third quadrant]

adjacent = -2 [because of third quadrant]

So hypotenuse = sqrt(5)

Step 2

sin x = opposite / hypotenuse

cos x= adjacent / hypotenuse

Step 3

We use multiple angle formula. ...

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