Hi everyone. My main goal this week is to learn derivatives of trig functions. But before that I'm still learning some of the trig identities and solving some equations. I'm stuck on a couple of questions that I need help on.(adsbygoogle = window.adsbygoogle || []).push({});

1.

Express [tex] \sec 2 \Theta [/tex] in terms of [tex] \sec \Theta [/tex] and [tex] \tan \Theta [/tex]

2. Express [tex] \csc 2 \Theta [/tex] in terms of [tex] \csc \Theta [/tex] and [tex] \sec \Theta [/tex]

3. Express [tex] \sin 2 \Theta[/tex] and [tex] \cos 2 \Theta [/tex] in terms of [tex] \tan \Theta [/tex]

4. Determine [tex] \sin 2 \Theta [/tex] if [tex] \sin \Theta + \cos \Theta = \frac{1}{2}[/tex]

5. Are there any sample problems on the web about finding an expression of a cone within a sphere and all you are given is the radius of the sphere and the semi-vertical angle of the cone? I have the same question in my book but I cant figure it out. I could write it up here but I cant include the diagram it shows with it.

Thanks for any help.

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# Learning Trig on my own I'm stuck and need assitance!

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