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anonymous

  • 4 years ago

If f(x) = x^3/2, what is (f.f)(-4)?

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  1. anonymous
    • 4 years ago
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    is (f.f), f times f or f of f?

  2. anonymous
    • 4 years ago
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    f of f

  3. anonymous
    • 4 years ago
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    (f of f)(x)= (x^3/2)^3/2 sub x=-4 (f of f)(-4)=-16384

  4. anonymous
    • 4 years ago
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    if f(x)= { (-7,1),(-5,8} and g= { (-6,4), (-5,3)} how to find (f+g)?

  5. anonymous
    • 4 years ago
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    Actually there is more numbers for f(x) and g(x)

  6. anonymous
    • 4 years ago
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    f(x)= { (-7,1),(-5,8),(3,11),(5,-1) and g(x) {(-6,4),(-5,3),(-1,7),(5,5)}

  7. anonymous
    • 4 years ago
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    I need example to slove this question. Do u know how?

  8. anonymous
    • 4 years ago
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    just add the y values for the matching x values and keep the rest (assuming f and g are sets) so (f+g)={(-7,1),(-6,4),(-5,11),(-1,7),(3,11),(5,4)}

  9. anonymous
    • 4 years ago
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    sorry I don't get it.

  10. anonymous
    • 4 years ago
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    so f contains (-5,8) and g also contains (-5,3), since x=-5 appears in both, f+g for that point equals (-5,8+3)=(-5,11)

  11. anonymous
    • 4 years ago
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    thx i got it

  12. anonymous
    • 4 years ago
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    you either keep all the rest of the points that don't have the same x values or don't keep them at all depending on the behaviour of the function which is not defined in the question

  13. anonymous
    • 4 years ago
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    i gonna solve other question and i will add another question. Thank for your help

  14. anonymous
    • 4 years ago
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    no problem

  15. anonymous
    • 4 years ago
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    f(x)= /3x/-10 and g(x)=2^3, what is (g.f)(-2)?

  16. anonymous
    • 4 years ago
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    i have confuse about /3x/ ?

  17. anonymous
    • 4 years ago
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    |x| means what ever value in |x| is positive example |-2|=2 i think you typed g(x) wrong since there is no variable

  18. anonymous
    • 4 years ago
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    | | means absolute value

  19. anonymous
    • 4 years ago
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    |3x| means absolute value of 3x

  20. anonymous
    • 4 years ago
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    g(x)=2x^3

  21. anonymous
    • 4 years ago
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    f(-2)=|3(-2)|-10=-4 (g of f)(-4)=2f(-2)^3=-128

  22. anonymous
    • 4 years ago
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    Thx

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