I'm very new to mathematica and have been trying to use it for solving differential eqns. I've done a simple equation and managed to do a plot of it which looks correct. All day i've been trying to get findroot to work so i can find the exact point at which it crosses the x-axis but keep having problems. Attached is a screenshot of what i've done. If anyone can help i'd appreciate it.(adsbygoogle = window.adsbygoogle || []).push({});

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# Mathematica problem - please help!

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