Multiply and simplify.(sin x - cos x)(sec x + csc x)
A. tan x - cot x
B. cos x - cot x
C. cot x + csc x
D. tan x - sin x
Answer: A
Mathematics
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The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).xy = 1
A. r sin 2? = 2 B. 2r sin ? cos ? = 1 C. 2r2 sin ? cos ? = 1 D. r2 sin 2? = 2
Mathematics
Calculate 
Mathematics
Provide an appropriate response.Which one of the following most closely resembles the graph of f(x) = a(x - h)2 + k if a > 0, h < 0, and 
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.
A. - 
B. 
C. 
D. 
Mathematics