+0

# If tan(x) = 1/2, what is sec(x) ?

0
270
1

If tan(x) = 1/2, what is sec(x) ?

Guest Mar 13, 2015

#1
+92254
+10

Decide what quadrants this can be in.  Decide if sec can be pos or neg or either.

NOW

Draw a tight angled triangle.

Label one of the acute angles x

now      $$tan x = \frac{1}{2}=\frac{opp}{adj}$$

label the opp side as 1   and the adj side as 2,   work out the 3rdside using the Pythagorean theorem.

$$sec(x)=\frac{1}{cos(x)}=\frac{hyp}{adj}$$        now just take the values from your triangle.    :))

Melody  Mar 13, 2015
Sort:

#1
+92254
+10

Decide what quadrants this can be in.  Decide if sec can be pos or neg or either.

NOW

Draw a tight angled triangle.

Label one of the acute angles x

now      $$tan x = \frac{1}{2}=\frac{opp}{adj}$$

label the opp side as 1   and the adj side as 2,   work out the 3rdside using the Pythagorean theorem.

$$sec(x)=\frac{1}{cos(x)}=\frac{hyp}{adj}$$        now just take the values from your triangle.    :))

Melody  Mar 13, 2015

### 37 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details