Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = tan u, u = -14x + 13
A. -14 sec (-14x + 13) tan (-14x + 13)
B. -14 sec2(-14x + 13)
C. - sec2(-14x + 13)
D. sec2(-14x + 13)
Answer: B
Mathematics
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A. 
B. 18
C. 
D. 7
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Solve the exponential equation by taking the logarithm on both sides. Use a calculator to obtain a decimal approximation, correct to four decimal places, for the solution.e(x + 7) = 2
A. -6.0837 B. 2.1972 C. -4.8028 D. -6.3069
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Simplify.(x-4y4)-1
A. 
B. 
C. 
D. 
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Find the following quotient, and write the quotient in rectangular form, using exact values.
A. 4
- 4i
B. -4i
C. -4i
D. 4i
Mathematics