Use the substitution formula to evaluate the integral.
sec2 4x dx
A. 4e
B. - 
C. e
D. 
Answer: D
Mathematics
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Find the square root.
A. 15 B. 112.5 C. 50,625 D. -15
Mathematics
Identify the indicated entry in matrix A.A = 
; identify a12.
A. 8 B. 7 C. 2 D. 5
Mathematics
Write the function as a product of linear and irreducible quadratic factors, all with real coefficients.f(x) = x3 - 6x2 - 2x - 35
A. (x - 7)(x2 + x + 5) B. (x - 7)(x2 + x - 5) C. (x + 7)(x2 + x + 5) D. (x + 7)(x2 + x - 5)
Mathematics
Use Cramer's rule to solve the linear system.
A. x = 
, y = - 
B. x = 
, y = 
C. x = - 
, y = 
D. x = 
, y = - 
Mathematics