So:
then multiplying through by and rearranging gives:
from which (if the algebra has been done right) the required result should
follow from the application of the previous result or the quadratic formula.
RonL
I have got a question on the relation between [LaTeX ERROR: Convert failed] and [LaTeX ERROR: Convert failed]
The question consists of two parts:
The first pary asks me to solve the equation [LaTeX ERROR: Convert failed]
Then I 've got the correct ans, which is
[-1 + (1+a^2)^1/2]
_________________
a
or
[-1 - (1+a^2)^1/2]
_________________
a
Then the second part ask me to express [LaTeX ERROR: Convert failed] in terms of [LaTeX ERROR: Convert failed] and the ans is
[-1 + (1+ (tan 2 theta) ^2 )^1/2]
___________________________________
a
or
[-1 - (1+ (tan 2 theta) ^2 )^1/2]
___________________________________
a