Question

agdgdgdgwngo , Please! help
http://imageshack.us/photo/my-images/813/page372.jpg/
number 1,2 ty

Answer 1

1)
\[y=4sin2\theta\] assumes maximum when \[sin2\theta = 1\] therefore \[y_{max} = 4\]
So, a possible sine function that has a greater maximum value could be \[y = 4.1 \cdot sin \theta\] which has maximum value 4.1


2)
When you multiply a function by (-1), you can see it as a rotation (reflection) around x-axis. So, \[3sin\theta\] and \[-3sin\theta\] are symmetric in relation to the x-axis.

(E.g.: this figure is symmetric in relation to the y-axis:
http://en.wikipedia.org/wiki/File:Simetria-reflexion.svg )

Answer 2

so 4sin2theta has a maximum value of 4, because the maximum value of sin2theta = 1
so i think y=6sin2theta has a greater maximum value that y=4sin2theta
i think the 2nd one has the crests and the troughs at the troughs and the crests of the 1st. they are additive inverses, i think. but i don't know the scientific name

Answer 3

tahnk all your guy,can you help me number 2)?

Answer 4

I also answered number 2.
Read above. ⇧