A spring with a 3-kg mass is held stretched 0.9 m beyond its natural length by a force of 30 N. If the spring begins at its equilibrium position but a push gives it an initial velocity of m/s, find the position x(t) of the mass after t seconds.
a. 
Mathematics
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Find the derivative of y with respect to x.y = tan-1 
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B. 
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D. 
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Find an expression equivalent to the given expression.
A. -cosh x B. sinh x C. cosh x D. -sinh x
Mathematics
Find the series' radius of convergence.
A. 0 B. 2 C. ?, for all x D. 1
Mathematics
Solve the problem.The accompanying figure shows the graph of y = x2 shifted to a new position. Write the equation for the new graph.
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Mathematics