Provide an appropriate response.Which of the following items is undefined and why?tan-1 6 or cos-1 6
What will be an ideal response?
cos-1 6, There is no angle whose cosine is 6.
Mathematics
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Simplify the complex rational expression.
A. 21x
B. 
C. 
D. 
Mathematics
Graph the system of inequalities.x ? -5x < 8y ? 
x - 3
A. 
B. 
C. 
D. 
Mathematics
Solve.Find the reciprocal of - 
.
A. 1
B. 
C. - 20
D. 20
Mathematics
Find the missing number. Round to the nearest hundredth if necessary.13? = 19
A. 1.38 B. 1.15 C. 1.46 D. 0.87
Mathematics