Вычислить производную функции y=x^2sin(x) - №32612970

Вычислить производную функции y=x^2sin(x)
- Предмет:
  Алгебра
- Автор:
  conner
- 5 лет назад

Ответы 1

Ответ:
Объяснение:
y=x^2sin(x), y'=2x*sin(x)+x^2*cos(x)
- Автор:
  rudynovak
- 5 лет назад
- 0
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1. The branch of Phonetics that studies the way in which the air vibrates between the speaker’s mouth and the listener’s ear is:
a) acoustic phonetics;
b) auditory phonetics;
c) articulatory phonetics.

2. Individual sounds of speech refer to:
a) segmental phonetics;
b) suprasegmental phonetics.

3. Speaker’s individuality, temporal provenance, social provenance, sex, age belong to:
a) phonetic style-forming factors;
b) incidental, concomitant features of the extralinguistic situation.

4. The phenomenon of hesitation is observed mostly in:
a) prepared speech;
b) spontanious speech.

5. The term “phoneme” is used to mean “sound”:
a) in its contrastive sense;
b) to describe sounds which are variants of a phoneme.

6. The principal allophones of the phoneme:
a) do not undergo any distinguishable changes in the chain of speech; b) occur under the influence of the neighbouring sounds in different phonemic situations.

7. The invariant of the phoneme considers such articulatory features that:
a) can be changed without affecting the meaning;
b) can not be changed without affecting the meaning.

8. The pronunciation error is called phonetic if:

a) an allophone of the same phoneme is replaced by an allophone of a different phoneme;

b) an allophone of the phoneme is replaced by another allophone of the same phoneme.

9. The narrow or allophonic transcription suggests:
a) special symbols for all the phonemes of a language;
b) special symbols including some information about articulatory activity of particular allophonic features.

10. The “mentalistic” or “psychological” phoneme theory was originated by:
a) D. Jones and L. Bloomfield;
b) N. Trubetskoy, R. Jacobson and M. Halle;
c) I. A. Baudain de Courtenay.

11. In modern Russian linguistic the following conception of phoneme is adopted:
a) “functional”;
b) “mentalistic” or “psychological”;
c) “abstract”
d) “physical”
e) “materialistic”.

12. The phonemes are to be said in contrastive distribution if:
a) they occur in different positions and never occur in the same phonetic context;
b) they occur in the same phonetic context.

13. Russian linguists widely use the following method of phonological analysis:
a) semantic;
b) distributional.

14. The term “accomodation” is used by linguists to denote the interchange of :
a) “vowel + consonant” type;
b) “consonant + consonant” type.

15. Loss of plosion is a result of:

a) the manner of articulation assimilation;
b) the lip position accomodation;
c) the position of the soft palate accomodation.

16. The problem of vowels in unstressed position is important for:
a) the Russian language;
b) the English language;
c) the both.

17. Grammatical forms of words and lexical units are distinguished by:
a) historical sound alternations;
b) stylistic sound modifications.

18. Careful articulation and relatively low speed are the features of:
a) informal speech;
b) formal speech.

19. The theory of muscular tension was introduced by:
a) O. Jespersen;
b) V. A. Vassilyev;
c) L. V. Shcherba;
d) R. H. Stetson.

20. The majority of linguists treat the syllable as:
a) a purely articulatory unit;
b) the smallest pronounceable unit which can reveal some linguistic function.

21. The structure of the syllable in English is mostly:
a) open;
b) closed.

22. English word stress is a phenomenon, marked by the variations of:
a) force and pitch;
b) quantity and quality;
c) all these factors.

23. In English word stress is:
a) free;
b) fixed.

24. Two equal stresses are typical for:
a) English;
b) Russian.

25. The terms of which level are more suitable for the aims of teaching:
a) of the acoustic level;
b) of the auditory level.

26. The nucleus of an intonation pattern is formed by:
a) all the stressed syllables of this pattern;
b) the last strongly accented syllable of this pattern;
c) the last two accented syllable of this pattern.

27. The falling tone is common for:
a) orders and commands;
b) general questions;
c) requests.

28. All the sections of the intonation pattern differentiate only:
a) grammatical meaning;
b) lexical meaning;
c) emotional meaning.

29. The initial unstressed syllables preceding the prosodic nucleus are called:
a) proclitics;
b) enclitics.

30. Pauses of perception are:
a) a silent stop on the phonation;
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Read the tongue-twisters. What sounds are used to create the effect of alliteration? State the connection of phonetics and stylistics.
1) Peter Piper picked a peck of pickled peppers
If Peter picked a peck of pickled peppers
Where is the peck of pickled peppers Peter Piper picked?
2) Robert Rowley rolled a round roll around, A round roll Robert Rowley rolled around; Where’s the round roll Robert Rowley rolled around?
3) If one doctor doctors another doctor, does the doctor who doctors the doctor doctor the doctor the way the doctor he is doctoring doctors?
Or does he doctor the doctor the way the doctor who doctors doctors?
4) Sudden swallows swiftly skimming, Sunset’s slowly spreading shade, Silvery songsters sweetly singing Summer’s soothing serenade
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