Solve the differential equation. = 8x7sec y

A. y = sin (x8 + C)
B. y = x8 + C
C. y = sin-1 (x8 + C)
D. y = cos-1 (x8 + C)


Answer: C

Mathematics

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A.  logn6 +  lognx -  lognz
B.  logn6 + 5 lognx - 9 lognz
C.  logn6 +  lognx +  lognz
D.  logn6 -  lognx -  lognz

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Simplify the expression. Write the answer using positive exponents.(k4)-7(km)3

A. -k25m3
B.
C. -k31m3
D.

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Solve the equation.log 4x = log 3 + log (x + 1)

A.
B. 3
C.
D. -3

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Determine whether the equation defines y as a function of x. y = ±  

A. function B. not a function

Mathematics