Mistake in Quiz 6 Check your Understanding 3.3?

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#1

Hi,

I think, there is a mistake in Quiz 6 of Chapter S03 Project Boost. There is a question concerning the calculation of sin(x) with a graph.

In the last code line, tau is devided by 4f. Thus, the result ist 1/4 tau. When i look on the given sin courve in the graph, the sin of 1/4 tau is about 0.75. But this is no valid option in the answers provided. If i choose 1 as result, i get the message, that this is the correct answer. After my opinion, 0.75 is the correct answer.

May be i’m wrong. Math ist not my strength…

#2

Hi Straesso !

tau/4 (you can write : (1/4) x tau)
is actually
(2/4) pi (as tau = 2 x pi)

(2/4) x pi = (1/2) x pi

And on the graph, the answer for (1/2) x pi is 1 ! :slight_smile:

Hope it helps !

1 Like
#3

Thanks, now my wrong understanding is clear! On the Graph, pi is mentioned and not tau :wink:

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