The last step in a problem of mine is to find all solutions between 0 and pi/2 of the following equation:(adsbygoogle = window.adsbygoogle || []).push({});

R(tanx + 1/cosx + x - 1) = 1/2R^{2}(tanx - x)

By simple inspection and with the aid of a graphing calculator, its obvious that the only solution is x=0, regardless of the value of R. This is enough for the assignment, but Im wondering if theres a way to mathematically isolate x and prove that 0 is the only solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Trig Equation

**Physics Forums | Science Articles, Homework Help, Discussion**