Answer:
<a=55° ,< b=55° and <c=70°
<span>2√(x-5) = 2
</span><span>√(x-5) = 1
</span>x-5 = 1
x=6(I don't know what extraneous solution means though)
It Is True . For A Function Each Input Should Only Have One OutPut .
Example ❤️ :
Input | Output
01 | 05
02. | 08
03. | 06
It Wouldn't Be A Function If The Input Had Repeated
Example ❤️ :
Input | Output
07. | 03
09. | 01
09. | 12
03. | 02