Zach

please show steps and name rules

8z-sqrt(7xz^2) = 3z/2

Given the following function: f(x) = sqrt(3)sin(x)+cos(x) on the interval [0, 2pi].

a. Determine the open interval(s) where f(x) is increasing.

b. Determine the open interval(s) where f(x) is decreasing.

c. Determine the relative maximum(s) or minimum(s).

side note: I understand the general ideas behind this but the trigonometric functions are throwing me off.

please show steps after first derivative is taken.

I need to see the steps because I don't even know where to start. Any help will be appreciated.

I already know the answer, just having a little trouble with the explanation:

( ( y / x ) - ( x / y ) ) / ( ( 1 / y ) - (1 / x ) )

any help is much appreciated!

Here's my code so far:

#!/usr/bin/env python3.1

# import modules

import random

import sys

# lists

x1 = [23456789]

x2 = ['a''b''c''d''e''f''g''h''i''j''k''m''n''o''p''q''r''s''t''u''v''w''x''y''z']

x3 = ['A''B''C''D''E''F''G''H''I''J''K''L''M''N''P''Q''R''S''T''U''V''W''X''Y''Z']

Allcharacters = (x1, x2, x3)

try:

Howlong = int(input())

except:

Howlong = 12

print("Your new password: ")

for i in range(Howlong):

sys.stdout.write(random.choice(str(Allcharacters)))

******************************************************************************************************************

Now the problem is that when I run the program, the password prints with the " " and [ ] as well as the letters and numbers. How do I get ONLY the numbers and letters to be included in the password.

Completely new to programming. Why does this section of python3 code not work?

#!/usr/bin/env python3.1

print("Would you like to play a little game of chance?")

input("Y/n: ")

if Y:

print("Alright then!)

else:

print("Well you're no fun.")

I've been learning python the last couple of days (no prior programming experience). I'm trying to write what I thought would have been a very simple Y/n response question but it is proving to be quite troublesome. This is what my code looks like:

#!/usr/bin/env python3.1

print("Would you like to play a little game of chance?")

choice = input("Y or n: ")

Y = 1

if choice == 1:

print("Alright then!)

else:

print("Well you're no fun.")

-------------------------------------------------------------------------------------------------

When I run it, this happens:

Zach@Zachs'sPC:~/py3eg$ python game.py

Would you like to play a little game of chance?

Y or n: Y

Zach@Zach'sPC:~/py3eg$

----------------------------------------------------------------------------------------------------------------

It just terminates. I've looked up some sample code for Y/n questions and everything I've found appears to be a bit complicated for what SEEMS like such a simple program. I'm sure there are multiple reasons but why is my code not working???

I'm working out of a book (Programming in Python 3). I've just written one of the example programs (sum2.py) and it works fine but I'm having some problems with one aspect. Let me quote from the book then I'll tell you what I've done and what the results were. (p.s. I'm working in Ubuntu)

"Given the command line sum2.py<data\sum2.dat (where the sum2.dat file contains a list of numbers one per line and is in the examples' data subdirectory), the output to the console is..."

OK. I created a folder called "data" and a text file called "sum2.dat" but when I type "sum2.py<data\sum2.dat" in the the terminal, I get the result "bash: datasum2.dat: No such file or directory" What the heck?

I just started learning python yesterday. I was messing around in IDLE with some comparison operators and this happened:

>>> str(10) > str(5)

False

>>> str(10) < str(5)

True

Could someone explain this result?

Was not a good math student in high school. Scored about a 550 on math portion of SAT.

However, when I got to college I actually began to study. Got an A in Algebra II w/ Analytic Geom. Pretty much aced my trigonometry class (like 98 avg, but admittedly he was an easy prof). And I also scored very high in the symbolic logic class i took my freshman year (probably 97 percent) without studying very much (it just came naturally) and the prof for that class said these skills were useful in upper level math. As of now I am a pre-med chemistry major but to be honest I think I am beginning to find math more interesting!

i need to know how to set up the conversion!!!

2+2b = 2(1 + b)

Evolution works because individuals who posses traits good for survival are more likely to pass on their genes. I have been thinking about viruses lately and it seems to me that some of them generally operate in a manner that is contrary to that. Take for example the Ebola virus. It works at an alarmingly fast pace to kill its host. Doesn't it seem that natural selection might favor a virus that could actually help it's host? I realize that there is not really a shortage of hosts or anything, but their MO just kind of seems counter productive from an evolutionary standpoint. I'm not a biologist (obv) and I'm sure my thinking here is just too oversimplified but can anyone set me straight? Also, are there any viruses known to have ANY positive effects for their hosts?

I got 2y but the answer index in my textbook says y. It could be a mistake as I have found one obvious one in the book before. However, this is driving me crazy! If you get the answer "y" please explain!!! If most of you get "2y" and no one gets "y" I will be more inclined to believe it is another mistake in the book.

If so, where would I get it from. If not, how would you go about obtaining it illegally?