Answer:
T0 =0, T1=0
Step-by-step explanation:
Please kindly go through the attached files for a detailed explanation. 
I arranged them from the first one to the last one. 
 
        
             
        
        
        
Area=(Theta/2) * r^2 This should be it, obviously Theta is your angle and you should use radiants in theory.
        
             
        
        
        
Combing like terms you have 0.25k - k = -0.75k
 and 1.5 - 3.5 = -2.0
The answer would be -0.75k - 2.0
 
        
                    
             
        
        
        
Answer: 2(x^2-2x+4)
Step-by-step explanation:
You can factour out 2:
2(x^2-2x+4)