Tan alpha is -4/3 and tan beta is 5/12. The equation is tanAlpha-tanBeta/1+tanAlpha(tanBeta). The answer on the book says the answer is 63/16..but I'm not getting the same answer so I don't know where I went wrong. Medal for whoever can help me step by step to get the answer 63/16.

Question

anonymous · Answer

the answer in the book is wrong

anonymous · Answer

That's what I figured since all the answers its been giving for my math lesson have been a little odd..

anonymous · Answer

no the anwer is right im sorry

anonymous · Answer

lol its okay. How do I get there?

anonymous · Answer

I thought that since 3 and 12 had an LCD of 12, that I would multiply-4/3 by 4/4 to get -16/12..but the out

anonymous · Answer

$$-4/3-5/12\div1-4/3*5/12$$

anonymous · Answer

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