Find Dxy.y = 7 tanh-1 (cos x)

A. - 
B. ln  sin x
C. - 
D. - 


Answer: C

Mathematics

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Find the derivative of y with respect to the appropriate variable.y = sinh-1 (cos x)

A.  
B.  
C.  
D. - sin x

Mathematics

Without using a calculator, give the exact trigonometric function value with rational denominator.sin 30°

A.
B.
C.
D.

Mathematics

Perform the indicated operation. Write the result in the form a + bi.(6 + 4i) - (-2 + i)

A. 4 + 5i B. 8 + 3i C. 8 - 3i D. -8 - 3i

Mathematics

Solve the inequality.9 + 13x + 11 ? 12x + 12

A. {x }

B. {x }

C. {x }

D. {x }

Mathematics