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Use Common Logarithms to Solve for X in Terms of Y

Question 24

Multiple Choice

Use common logarithms to solve for x in terms of y. y=exexex+exy = \frac { e ^ { x } - e ^ { - x } } { e ^ { x } + e ^ { - x } }


A) x=3lny1y+1x = 3 \ln \frac { y - 1 } { y + 1 }
B) x=12lny+11yx = \frac { 1 } { 2 } \ln \frac { y + 1 } { 1 - y }
C) x=2lny1y+1x = 2 \ln \frac { y - 1 } { y + 1 }
D) x=13lny+1y1x = \frac { 1 } { 3 } \ln \frac { y + 1 } { y - 1 }
E) x=lny1y+1x = \ln \frac { y - 1 } { y + 1 }

Correct Answer:

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