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Home Q & A Board Science-Related Homework Help Mathematics Pre-calculus and Functions
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marinejas Author
wrote...
#14
3 years ago Edited: 3 years ago, marinejas
Like I mean the answer to the question, for example f), the question is tan pi/6 and that equals to √3/3, but as I got my answer which is cot (pi/3), is does not equal to √3/3, instead it equals to √3.
Post Merge: 3 years ago

Oh shoot! I'm so sorry I just realized that I posted the answers in the wrong question, I meant it for https://biology-forums.com/index.php?topic=1970201.msg5150156#msg5150156 very sorry for confusing you! Frowning Face
FOR this question were talking about 2 tan x / 1 - tan^2 x, and my teacher had wrote it like this,
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wrote...
#15
Educator
3 years ago
It's okay.

So your teacher is wrong.

Look at the numerator, he says tan(x) + tan(x) is the same as tan(x + x). They are not equivalent, hence his proof is wrong.

Test it yourself, say x = 40°:

tan(40°) + tan(40°) ≠ tan (80°)
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