Find the range of 1+x-x² | Mathematics | Page 1

modest rune Mar 3, 2024, 4:45 AM

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Am getting R: (-$\infty$, 0]

storm barnBOT Mar 3, 2024, 4:45 AM

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modest rune Am getting R: (-$\infty$, 0]

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tribal pagodaBOT Mar 3, 2024, 4:45 AM

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Akash!

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Akash!

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Akash!

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Akash!

fallen laurel Mar 3, 2024, 5:16 AM

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tribal pagoda **Akash!**

@modest rune proof

tribal pagodaBOT Mar 3, 2024, 5:20 AM

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Akash!

modest rune Mar 3, 2024, 5:21 AM

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and x²=1+x has no complex solutions

tribal pagodaBOT Mar 3, 2024, 5:21 AM

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Akash!

modest rune Mar 3, 2024, 5:23 AM

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i think I made a mistake

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x² should be $\geq$ (x+1) for any value of x not equal to 0

tribal pagodaBOT Mar 3, 2024, 5:24 AM

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Akash!

fallen laurel Mar 3, 2024, 5:25 AM

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@modest rune so 1>2?

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when we input 1.

modest rune Mar 3, 2024, 5:40 AM

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ayo i fucked up

tribal pagodaBOT Mar 3, 2024, 5:40 AM

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Akash!

modest rune Mar 3, 2024, 5:42 AM

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How am I supposed to do then?

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@fallen laurel

fallen laurel Mar 3, 2024, 5:42 AM

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well it clearly is a downward parabola

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thus it goes down to negative infty

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so we got that bit

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just find the maximum value

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and we are good to go

modest rune Mar 3, 2024, 5:43 AM

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i can't draw the graph at exam

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any other method?

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we won't get one for the algebraic equations

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only for inequalities

fallen laurel Mar 3, 2024, 5:44 AM

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u can find maximum value

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without graph

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and u know its a downward parabola as coefficient of x^2 is negative?

modest rune Mar 3, 2024, 5:44 AM

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No

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i just might wanna read play with graphs book

fallen laurel Mar 3, 2024, 5:45 AM

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modest rune i just might wanna read play with graphs book

u indian right

modest rune Mar 3, 2024, 5:45 AM

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yeup

fallen laurel Mar 3, 2024, 5:45 AM

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what class u in

modest rune Mar 3, 2024, 5:45 AM

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11th

fallen laurel Mar 3, 2024, 5:45 AM

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did u skip quadratic equations or something

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all this is in that chapter

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🙏

modest rune Mar 3, 2024, 5:46 AM

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i basically forgot

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And for 11thn we don't have anything that much in detailed

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on quadratic equations

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in 10thn, we studied math from an examination point of view

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for boards

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not for knowledge

mighty obsidian Mar 3, 2024, 6:38 AM

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modest rune Am getting R: (-$\infty$, 0]

No, that's not correct.
Try completing the square.

modest rune Mar 3, 2024, 7:55 AM

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got the answer in genes

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general*

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+close

#Find the range of 1+x-x²