Mathematics OpenStudy (anonymous):

Solve the attached problem... OpenStudy (anonymous): OpenStudy (turingtest):

this exercise seems pretty stupid if I understand it correctly OpenStudy (anonymous):

my choices are: sec theta 3sin theta 3cos theta 3csc theta 3cot theta OpenStudy (turingtest):

$\sqrt{9+x^2}$plug in$x=3\cot x$and we get$\sqrt{9+(3\cot x)^2}$simplify this by puling the constant out of the radical OpenStudy (anonymous):

so it then becomes 3cot theta? OpenStudy (turingtest):

typo above, x should be theta ... this time I'll just say it simplifies to$3\sqrt{1+\cot^2\theta}$ OpenStudy (turingtest):

now manipulate the identity$\sin^2\theta+\cos^2\theta=1$to get an expression for $$1+\cot^2\theta$$ , which you can then sub into the above to get an answer choice OpenStudy (anonymous):

how do i do that? OpenStudy (turingtest):

divide the identity by sin^2 and you will get an expression for cot^2+1 OpenStudy (anonymous):

thanks for the help! OpenStudy (mertsj):

@TuringTest The reason it seems stupid to you is that you are tooooooo dang smart!

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