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marigirl
 one year ago
Could you please explain mathematically what actually happens to the absolute value below
marigirl
 one year ago
Could you please explain mathematically what actually happens to the absolute value below

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marigirl
 one year ago
Best ResponseYou've already chosen the best response.1\[\ln \left 2k^31 \right=7.5\]

marigirl
 one year ago
Best ResponseYou've already chosen the best response.1Then I would go \[\left 2k^31 \right=e^(7.5)\]

marigirl
 one year ago
Best ResponseYou've already chosen the best response.1what will happen to the absolute function value now?

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.2try\[2k^3−1=\pm e^{7.5}\]

marigirl
 one year ago
Best ResponseYou've already chosen the best response.1My question was to solve for k which the value is + or  9.67 how do we 'get rid' of an absolute value function, or how do we balance an absolute value function in an equation Since absolute value function only look at positive values, I am a little confused with your response @IrishBoy123

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.2let's say x = 3, then we can conclude that x = 3 OR x = 3 yes?

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.2ie, in that example i give, we conclude \[x = \pm3\]

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.2so if \(x=e^{7.5}\), you must consider \(x= \pm e^{7.5}\)

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.2you should get two answers \[\sqrt[3]{\frac{1 \pm e^{7.5}}{2}}\]

marigirl
 one year ago
Best ResponseYou've already chosen the best response.1oh yea it makes sense now, I got k=9.67 and k=9.66 Thanks heaps! I really appreciate it
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