Thread: Stuck in this trigonometric equation...

I need to get from this:
a^2 / 4*sin(x)*cos(x)

To this:
a^2 * tan(x)

thanks

Originally Posted by klik11

I need to get from this:
a^2 / 4*sin(x)*cos(x)

To this:
a^2 * tan(x)

thanks

That is not possible the statement is false!

Thanks for the fast answer.
Is 2*a^2 / 4*sin(x)*cos(x)
false too?

Originally Posted by klik11

Thanks for the fast answer.
Is 2*a^2 / 4*sin(x)*cos(x)
false too?

Just so we are clear is this what you intended in the first post.



you 2nd question does not make sense. An expression cannot be true or false in the first part you wanted to show the above identity was true and it isn't.

Yes you were right...
Last question for today:
can
a^2 * cos(2x) + a^2 / 2*sin(x)*cos(x)
be
a^2 * tan(x)

Originally Posted by klik11

Yes you were right...
Last question for today:
can
a^2 * cos(2x) + a^2 / 2*sin(x)*cos(x)
be
a^2 * tan(x)

Please use parenthesis do you mean



or

the second one

No what if



plug that into both equations and see what you get