Express the given expression in simplest form with only positive exponents.y-6 ? y-2
A. y8
B. 
C. 
D. 
Answer: D
Mathematics
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Multiply and simplify.(sin x - cos x)(sec x + csc x)
A. tan x - sin x B. cos x - cot x C. cot x + csc x D. tan x - cot x
Mathematics
Find a? b.a = 4i + 4j, b = -1.5i - 0.5j
A. 
B. 4
C. 
D. -8
Mathematics
Use < or > for ? to write a true sentence. Draw a number line if necessary.0 ? 26
A. > B. <
Mathematics
Use a product-to-sum identity to rewrite the expression.cos 
sin 
A. 0.5
B. 0.5
C. 0.5
D. 0.5
Mathematics