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devlian [24]
2 years ago
7

Round off 3.55 to one significant figure

Mathematics
2 answers:
taurus [48]2 years ago
7 0
The answer I believe is 3.5
german2 years ago
5 0
It would be 4
or if they are looking for a decimal, it would be 3.6

Hope this helps!
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One way to do this is to notice

\dfrac{17\pi}{12}=\dfrac\pi6+\dfrac{5\pi}4

Then

\tan\dfrac{17\pi}{12}=\tan\left(\dfrac\pi6+\dfrac{5\pi}4\right)=\dfrac{\tan\frac\pi6+\tan\frac{5\pi}4}{1-\tan\frac\pi6\tan\frac{5\pi}4}

We have

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and since \tan x has a period of \pi,

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\tan\dfrac{17\pi}{12}=\dfrac{\frac1{\sqrt3}+1}{1-\frac1{\sqrt3}}=\dfrac{1+\sqrt3}{\sqrt3-1}=2+\sqrt3

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3 years ago
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Answer:

The answer that you are looking for would be

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