blaster0

5 Questions
4 Answers

0

819

1

+38

derivation of function

A.) How can I get on which interval is the function increasing and decreasing with using derivation?
y(x)=x^2-ln(x^2)
?
B.)
y(x)=x^2/2*x lee mas ..

blaster0 29 may 2014

0

1286

1

+38

fun with square

Why is (-5)^3=-125 (-5*-5*-5)=-125,
and 3-th square of (-125) is not defined in real numbers, only in complex numbers? ((-125)^1/3))??? any idea?

blaster0 28 may 2014

+5

741

2

+38

problem with denominator

blaster0 26 may 2014

0

1485

6

+38

Solving trigonomerty equation

Solve : tg(x)>=sin(x) on interval <0,2pi>

Anybody who know solve this?

becuase im lost

Alan ●●●●●●

blaster0 18 may 2014

0

757

2

+38

exponencial f

I need some help, people

http://www.wolframalpha.com/input/?i=4%5Ex-3*2%5Ex-4%3C00
i think in real numbers it should be x>0 && x<2 but i im really not sure.
When I get 2^x=t - substitution then it will lee mas ..

blaster0 17 may 2014

+38

0

thank you very much :)

blaster026 may 2014

+38

0

it so assigned:

Solve on interval <0;2*pi> non-equation: tgx>=sinx

Here is result

http://www.wolframalpha.com/input/?i=tgx%3E%3Dsinx+%26%26+x%3E0%3C2pi

but i dont know how to solve it

blaster018 may 2014

+38

+5

I got it

Melody and CPhill thank you very much and sorry for that thumbs

blaster018 may 2014

+38

+5

How did you get -2 from log6,25/log0,4

thx

blaster017 may 2014