Wolfram Alpha functions and plots

0
votes

I am new with wolfram alpha and I am trying to do the following but I am having trouble doing it.

(1) On Wolfram Alpha, how can we plot two inequalities on the same graph? For example, if I want to plot x^3>-1 and x^2 - 1 < 0

(2) On Wolfram Alpha, how can we use the If function to impose restrictions on variables. For example, I want to ask "If x>0, is 4^x < 3 ^(x+1) ? How do I impose the constraint "x>0"?

Any help would be appreciated. Thank you.

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wolfram-mathematicawolframalpha
I’m voting to close this question because it's asking about Wolfram Alpha usage and has nothing to do with programming. Please see How to Ask about the topics you can ask here. - 0stone0
@0stone0 He's clearly trying to program Wolfram Alpha - Chris Degnen

1 Answers

1
votes

First one:

solve x^3 > -1 && x^2 - 1 < 0

-1 < x < 1

Second one:

4^x < 3^(x + 1) && x > 0

(0, -log(3)/(log(3) - 2 log(2))

I.e. true between 0 and 3.81884