Express the given quantity in terms of sin x or cos x.cos (4? + x)
A. cos x - sin x
B. cos x
C. -cos x
D. -sin x
Answer: B
Mathematics
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Solve.
- 
= 8
A. 
B. 
C. 
D. 
Mathematics
Solve by the substitution method.x + 6y = 44x + 7y = 16
A. (-4, -1) B. (0, 4) C. (4, 16) D. (4, 0)
Mathematics
Provide an appropriate response.If f(x0, y0) = -2 and the limit of f(x, y) exists as (x,y) approaches (x0, y0), what can you say about the continuity of 
at the point 
Give reasons for your answer.
What will be an ideal response?
Mathematics
Add and simplify.
+ 
A. - 
B. 
C. - 
D. 
Mathematics