we can have a triangle  and we know that there are two angles. 
30º and a 45º + 105 =180º angle. applying the sides. 
therefore if we have the whole triangle completed we have a constant triangle. 
so it tell us we can you’se SOH CAH TOA 
we can varrify what kind of triangle we are using. 
for example if we were to use  Sin I would do 
Sin 30/ 2 = sin of 105º/ A = sin=45º/ B
if you would want to solve for  sin 30/2 and sin 105, then we solve. 
 
or Sin 30/2  and Sin 105 as well. 
with your calculator use sin= 30=.5  and use sin 105º a divide by 1.5 on both sides    1.5= A /sin 105º * 1.5   answer would be 3.86.  a is = to 3.86 (Not the answer)
 
        
             
        
        
        
Answer:
The area of the region between the graph of the given function and the x-axis = 25,351 units²
Step-by-step explanation:
Given  x⁵ + 8 x⁴ + 2 x² + 5 x + 15
If 'f' is a continuous on [a ,b] then the function
             
By using integration formula

Given  x⁵ + 8 x⁴ + 2 x² + 5 x + 15 in the interval [-6,6]
  
<em>On integration , we get</em>
 =   

 = 
After simplification and cancellation we get
  =  
on calculation , we get
 = 
On L.C.M  15
= 
= 25 351.2 units²
<u><em>Conclusion</em></u>:-
<em>The area of the region between the graph of the given function and the x-axis = 25,351 units²</em>
 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Given x^2+4x+13=0, find the complex roots.  The best approach here is to use the quadratic formula.  Note that a = 1, b = 4 and c = 13.  
Thus, the discriminant, b^2 - 4ac, is (4)^2 - 4(1)(13) = 16 - 52 = -36, and the square root of that is plus or minus i√36, or  plus or minus 6i.  
plus or minus i√
 
        
                    
             
        
        
        
The scale of a drawing is the RATIO that all parts of an object are reduced or magnified by