Establish the identity.
= 
What will be an ideal response?
= 
= 
= 
.
Mathematics
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (cos x)x
A. ln x(cos x)x - 1 B. (cos x)x (ln cos x + x cot x) C. ln cos x - x tan x D. (cos x)x (ln cos x - x tan x)
Mathematics
Evaluate the integral.
d?
A. 
+ C
B. ln (1 + e5?) + C
C. 5 ln (1 + e5?) + C
D. 
+ C
Mathematics
Solve the problem.If ?1 and ?2 are complementary angles and ?1 is 5 times as large as ?2, then what are the measures of the two angles?
A. ?1 = 72°, ?2 = 18° B. ?1 = 75°, ?2 = 15° C. ?1 = 150°, ?2 = 30° D. Not enough information to solve
Mathematics
Insert <, >, or = between the pair of numbers to form a true statement.
4.749
A. > B. = C. <
Mathematics