Find 
.y = (cos x)x
A. ln x(cos x)x - 1
B. ln cos x - x tan x
C. (cos x)x (ln cos x + x cot x)
D. (cos x)x (ln cos x - x tan x)
Answer: D
Mathematics
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Use the fundamental identities to simplify the expression.
+ cos x sec x
A. csc x B. cot2 x C. csc2 x D. sec2 x
Mathematics
Simplify the expression.
A. 
B. 
C. - 
D. 
Mathematics
Solve the equation using the square root property.2x2 = 14
A. {-
, 
}
B. {-7, 7}
C. {7}
D. {8}
Mathematics
Provide an appropriate response.True or false? If a > 0, then 
= ia.
A. True B. False
Mathematics