is it possible to find the value of x in without a calculator?
another question..
find the value of theta if
also ..
find the length of the hypotenuse in a right triangle if the sum of its three sides is 200.
This almost certainly has a solution which cannot be expressed in closed form using elementary functions and well known constants.
Sketch the curve and it is obvious that it has a single root between 0 and 1. The using the Bisection or NR algorithms you will find that the root is
CB