Answer:

Step-by-step explanation:
Tan (300°) can be written as Tan (360°-60°) ---1
Using identity :

Using 1
So, 
The value 
So, 
Thus the exact value of 
Answer:
(0.5,3)
Step-by-step explanation:
Answer: -1 < x < 1
Step-by-step explanation: Solve for x.
Graph line is down below!
Hope this helps you out! ☺
-Leif-
Answer:
6.9 foot.
Step-by-step explanation:
Given: Length of lamp post= 12-foot.
The angle of elevation of the sun is 60°.
∴ The length of Lamp post, which is opposite is 12-foot.
Now, finding the length of shadow cast by foot lamp.
Length of shadow is adjacent.
∴ We know the formula for
= 
Next, putting the value in the formula.
⇒ 
Cross multiplying both side and using the value of Tan 60°
∴ Adjacent=
≅ 6.9 (nearest tenth value)
6.9 is the length of shadow cast by a 12-foot lamp post.