3-domini
1
3-Domini di funzioni L. Pandolfi N.B. La base dei logaritmi ` e un qualsiasi numero a> 1. Calcolare i domini delle funzioni seguenti 1. x(x - 1)(x - 2) 2. log x(x - 1)(x - 2) 3. log x(x - 1)(x - 2) 4. x(x - 1)(x - 2) + x(x + 1)(x - 2) 5. log x(x - 1)(x - 2) - log x(x + 1)(x - 2) 6. x-1 x 2 -x 7. x 2 3 √ x 2 - 4 8. (x - 1)(x 2 - x) 9. log [(x - 1) (x|x|-|x|)] 10. √ x 4 - x 3 - 2x 2 11. log(x - 1)(x 2 - 2x) 12. (x - 1)(x 2 - 2x) 13. (x - 1)(x 2 - 2x) 14. log 2 x 2 -1 - 2 15. √ 10 sin x 16. log [10 cos x - 1] 17. log [10 cos x + 1] 18. log 10 cos x - 1 10 19. sin √ x + √ sin x 20. log √ x + √ log x 21. log √ x + log ( 1 x ) 1
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Transcript of 3-domini
3-DominidifunzioniL.PandolN.B.Labasedeilogaritmi `eunqualsiasinumeroa > 1.Calcolareidominidellefunzioniseguenti1.
x(x 1)(x 2)2. log x(x 1)(x 2)3. log
x(x 1)(x 2)4.
x(x 1)(x 2) +
x(x + 1)(x 2)5. log x(x 1)(x 2) log x(x + 1)(x 2)6.
x1x2x7.
x23x248.
(x 1)(x2x)9. log [(x 1) (x|x| |x|)]10.x4x32x211. log(x 1)(x22x)12.
(x 1)(x22x)13. (x 1)(x22x)14. log
2x212
15.10sin x16. log [10cos x1]17. log [10cos x+ 1]18. log
10cos x110
19. sinx +sin x20. logx +log x21. logx +
log
1x
1
