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kaylak:

https://s1.postimg.org/29ne7fetpr/Capture.png

5 days ago
kaylak:

@sillybilly123

5 days ago
sillybilly123:

|dw:1507846473541:dw|

5 days ago
kaylak:

i have 4 more after this but this one is just to check answers

5 days ago
sillybilly123:

the one on the left is the only 1 that can be global, right?!?!

5 days ago
kaylak:

yes

5 days ago
sillybilly123:

and the 2 in c) are local?

5 days ago
kaylak:

i would guess so

5 days ago
kaylak:

is it b and c

5 days ago
kaylak:

@Vocaloid hate to bother you but something doesn't seem right

5 days ago
kaylak:

the other question you answered you do realize it's to the 9th root right

5 days ago
sillybilly123:

kay. slow down !!

5 days ago
Vocaloid:

There is no globalmaximum so b is not right

5 days ago
kaylak:

it's c and d

5 days ago
sillybilly123:

\(\checkmark\)

5 days ago
Vocaloid:

Right

5 days ago
kaylak:

https://s1.postimg.org/3l6mw9a15b/Capture.png is this a?

5 days ago
sillybilly123:

yes, it's an odd function

5 days ago
kaylak:

after this only 4 more questions and then i promise you won't have to hear from me until next week at least in this subject

5 days ago
kaylak:

yeah when i saw to the 9th power i kinda don't think it's a

5 days ago
Vocaloid:

Actually nvm it's a

5 days ago
sillybilly123:

|dw:1507847337844:dw|

5 days ago
kaylak:

it is ok

5 days ago
Vocaloid:

The highest power has to be odd and the leading coefficient must be positive

5 days ago
Vocaloid:

So yeah silly was right

5 days ago
kaylak:

ok ths questin im lost

5 days ago
Vocaloid:

I'm not sure how to approach this 1

5 days ago
Vocaloid:

Silly I'll leave it to you

5 days ago
kaylak:

@sillybilly123

5 days ago
sillybilly123:

the other solutions will be the conjugates

5 days ago
sillybilly123:

right?

5 days ago
kaylak:

so the opposites

5 days ago
kaylak:

b?

5 days ago
sillybilly123:

for a complex number \(z = a + i b\), it's conjugate, \(z^*\), is \( z^* = a - i b\)

5 days ago
sillybilly123:

so \(z \cdot z^{*} = a^2 + b^2 = |z|\)

5 days ago
kaylak:

wait which question are we talking about

5 days ago
kaylak:

is b the answer for that one question?

5 days ago
kaylak:

@Vocaloid

5 days ago
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