Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln(cos(ln ?))
A. - 
B. tan(ln ?)
C. -tan(ln ?)
D. 
Answer: A
Mathematics
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Find the product.-7x3(7x7 + 3x5)
A. -49x10 + 3x5 B. -70x10 - 70x8 C. -70x3 D. -49x10 - 21x8
Mathematics
Perform the indicated operations and simplify the result so there are no quotients to complete the identity.
+ 
= ?
A. -2 tan2? B. sin ? tan ? C. 1 + cot ? D. sec ? csc ?
Mathematics
Solve.A 20-foot ladder is leaning against a house with the base of the ladder 4 feet from the house. How high up the house does the ladder reach? Round to the nearest tenth foot.
A. 20.4 feet B. 19.8 feet C. 16 feet D. 19.6 feet
Mathematics
Find the derivative of the function.y = log4 |(3x2 - 2x)5/2|
A. 
B. 
C. 
D. 
Mathematics