Greater than 4. 
The square root of 20 is equivalent to 2 root 5. If you convert this to a decimal you get 4.4721 which is greater than 4.
        
             
        
        
        
Answer:
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Step-by-step explanation:
 
        
             
        
        
        
Answer:
 The first four terms of the above sequence are 1, 6, 11, 16.
Step-by-step explanation:
 A sequence is defined by the function f(n)=f(n-1)+5. 
Where n represents the number of the term for n>1
First Put n = 2
f(2)=f(2-1)+5.
     = f (1) + 5
     = -4 + 5
     = 1
Second Put n = 3
f(3)=f(3-1)+5.
     = f (2) + 5
     = 1 + 5
     = 6
Third Put n = 4
f(4)=f(4-1)+5.
     = f (3) + 5
     =  6+ 5
     = 11
Second Put n = 5
f(5)=f(5-1)+5.
     = f (4) + 5
     = 11 + 5
     = 16
Therefore the first four terms of the above sequence are 1, 6, 11, 16.
 
        
                    
             
        
        
        
Answer:
the answer is B
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Given

Required
Solve
Using sine rule, we have:

This gives:

So, we have:

In radical forms, we have:


Take LCM

Rewrite as:

Hence:
