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#### captainnumber36

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- Jun 23, 2018

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- Jun 23, 2018

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- Jun 23, 2018

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26, 27 and 30 and the ones I'm not sure on. If you click on the link, you will find question 30.

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For 27, I know the Y axis = 0 at 0, 180 and 360 degrees. This translates to the radian values and I do the math and find my answer to be five. (More explanation would be nice on this).

For 30, I think I just need to look at those kinds of graphs so I know what they look like.

- Mar 1, 2012

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27. period of $y=\sin(2x)$ is $\pi$ ... five zeros on the given interval is correct $\bigg\{0,\dfrac{\pi}{2}, \pi , \dfrac{3\pi}{2}, 2\pi \bigg\}$

30. The graph is $y=\ln{x}$ reflected over the x-axis, making it $y=-\ln{x}$

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- Jun 23, 2018

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Thanks!

27. period of $y=\sin(2x)$ is $\pi$ ... five zeros on the given interval is correct $\bigg\{0,\dfrac{\pi}{2}, \pi , \dfrac{3\pi}{2}, 2\pi \bigg\}$

30. The graph is $y=\ln{x}$ reflected over the x-axis, making it $y=-\ln{x}$