Write the expression in terms of sines and/or cosines, and then simplify.sec ?(cot ? + tan ?)
A. 
B. 
C. cos ? - sin ?
D. 
Answer: B
Mathematics
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Solve the problem.Find the equation of the tangent line to the curve 
+ 
= 1, at the point 
A. -14
x + 7y = 9
B. 14
x - 7y = 20
C. 2
x - 7y = 20
D. 2
x + 49y = 20
Mathematics
Solve the given equation by finding the unknown value.35 = 7 + ?
A. 18 B. 28 C. 34 D. 38
Mathematics
Write the system of equations associated with the augmented matrix. Do not solve.
A. 
B. 
C. 
D. 
Mathematics
Find an equation for the ellipse described. Graph the equation.Foci at (1, 5) and (-7, 5); vertex at (-8, 5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics