Answer:
(C)
Step-by-step explanation:
From the given figure, we have
AB=x, AC=10 and ∠C=60°
Using trigonometry, we get
Substituting the given values, we get
⇒
Therefore, the value of x is units.
D.
with questions like this try using Desmos
Solution :
put x = -1
Now, put x = 1
here :
Answer: 144 cm