Find the value of the expression.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Provide an appropriate response.Derive the identity sec-1(-x) = ? - sec-1 x by combining the following two equations:cos-1(-x) = ? - cos-1 xsec-1 x = cos-1(1/x)
What will be an ideal response?
Mathematics
Find the length of the curve.y = 
, 2 ? x ? 5
A. 14
B. 21
C. 6
D. 
Mathematics
Solve the inequality.4x > 16
A. x > 2 B. x < 4 C. x < 1 D. x > 3
Mathematics
Use a sum-to-product identity to rewrite the expression.sin (7t + 8) + sin (2t + 4)
A. 2cos 
cos 
B. 2cos 
sin 
C. 2sin 
cos 
D. 2sin 
sin 
Mathematics