Find the exact value of the expression. Do not use a calculator.sin 
- cos 
A. 
B. 
C. 0
D. 1
Answer: C
Mathematics
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Evaluate the integral.
A. - 
B. 5
C. 
D. - 3
Mathematics
Simplify the expression.
A. tan x B. cot x C. csc x D. -cot x
Mathematics
Determine whether the statement is true or false.The number -a is always a negative number.
A. True B. False
Mathematics
Write an equation of the tangent line to the graph of y = f(x) at the point on the graph where x has the indicated value.f(x) = 
, x = 0
A. y = - 8x - 4 B. y = 8x + 4 C. y = - 8x + 4 D. y = 8x - 4
Mathematics