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# math help watch

1. show that the equation tan(x+45)=6tanx can be written as in the form 6tan^2 x - 5tanx + 1 = 0
2. (Original post by TumiZN)
show that the equation tan(x+45)=6tanx can be written as in the form 6tan^2 x - 5tanx + 1 = 0
If you use the formula tan(a+b)= tan a + tan b/ 1-tanatanb
And you should get there.

3. Remember that .
4. (Original post by B_9710)

Remember that .
Right method, but the tangent of 45 degrees is a lot nicer number than that
5. (Original post by B_9710)

Remember that .
The way I like to remember is to remember that that's where , and since then we know that . I know you know this, but this is for anybody else who's reading it.
6. tan45° = 1
7. am I too late?

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