Answer:
<em>−  2sin(b) / cos(2b)</em>
Step-by-step explanation:
DIFFERENTIATE W.R.T. B is a different method entirely
We simply add together the numerators and set with 2cos
then keep this number and add to sinb and square it.
then repeat initial 2 + cosb ^2 but instead of multiplying its add.
Then set the whole division to -sin (2b) squared then +1
<em> −  2cos(b)(3(sin(b))^2+(cos(b))^2)  /  −(sin(2b)) ^2 +1  </em>
  
 
        
             
        
        
        
Answer:
−
10
x
^3
−
4
x
^2
+
4
x
+
3
Step-by-step explanation:
 
        
             
        
        
        
Simplifying this, we get:
(x+4)(x-4) = 0
Now, to get 0, we can replace x for one of these things to make 0, so:
x can either be 4, or -4
        
                    
             
        
        
        
Answer: b is for ░▒▓█ Ř █▓▒░
Step-by-step explanation:
 
        
             
        
        
        
Answer:
yes it is right
Step-by-step explanation: