# Math test with answers Part 2

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Math test, the number of jobs - 90.

Question 1. What is called a function?

number;
a rule by which each value of argument x corresponds to one and only one value of y;
vector;
matrix;

Question 2. How is it possible to determine the inverse function?

where each element has a unique inverse image;
When the function is constant;
when the function is not defined;
When the function is multi-valued;

Question 3. What function is called Limited?

reverse;
the function f (x) is bounded, if mf (x) M;
complex;
the function f (x) is called bounded if f (x)> 0;
the function f (x) is called bounded if f (x) 0;

Question 4: What is the point is called a limit point of A?

null;
t.h0 called a limit point of A if every neighborhood of x0 contains a point of A different from x0;
not belonging to the set A;
lying on the boundary of the set.

Item 5. Can be a limit at the point when one-sided limits not equal?

Yes;
sometimes;
No;
always;

Question 1. Is the function of infinitesimal when?

Yes;
No;
sometimes;
always;

Question 2. Is the function is infinitely large at?

Yes;
No;
sometimes;
if x = 0;

Question 3. Is the function y = sin x infinitely large when?

Yes;
No;
sometimes;
always;

Question 4. Is the function y = cos x infinitely large when?

Yes;
No;
sometimes;
always;

Question 5. Is the function y = tg x infinite in Vol. X0 = 0?

Yes;
sometimes;
always;
No;

Activity 3

Question 1. Is the product of an infinitesimal function on a limited function, infinitesimal function?

No;
Yes;
sometimes;
not always;

Question 2: When is infinitesimal  (x) and  (x) are called infinitesimal of the same order at x0?

if they are equal;
if;
if;
if the limits are 0;

Question 3. How many kinds of basic elementary functions we learned?

5;
1;
0;
2;
3.

Question 4: What is the limit of the constants?

0;
e;
1;
;
p.

Question 5. Is the power function continuous?

No;
Yes;
sometimes;
for x> 1;

Question 1. Give the formula of the first remarkable limit.

;
uґ = kx + B;

Question 2. Give the formula of the second remarkable limit.

0;

Question 3: What functions are called continuous?

infinitesimal;
satisfying the following conditions: a) f is definable in t. in x0) exists and is equal to f (x0);
infinitely large;
degree;
trigonometric.

Question 4. If f (x0 + 0) = f (x0-0) = L, but f (x0) L, which is a function of the gap?

2nd kind;
Disposable;
the function is continuous.

Question 5. What is the gap f (x) in t. X0 if f (x0-0) f (x0 + 0), and it is not known: Of course these limits?

Disposable;
the function is continuous;
1st kind;
2nd kind.

Question 1. Formulate the continuity of complex functions.

always difficult function is continuous;
If the function u = g (x) is continuous at x0 and the function y = f (u) is continuous at u = g (x0), then the composite function y = f (g (x)) is continuous at x0.
complex function is a composite of continuous functions is not continuous;
complex function is discontinuous;

Question 3. What is the derivative of the function?

The limit values \u200b\u200bof this function;
0;
1;
e

Question 4. What function is differentiable at x = 4?

ln (x-4);
having a derivative at x = 4;
is continuous at x = 4;

Question 5. What function is called differentiable on (a, b)?

discontinuous at each interval;
differentiable at each point of the interval;
constant;
increasing;
decreasing.

Question 1. What is the derivative of y = a constant?

1;
0;
e;
;

Question 2. What is the derivative of the function y = x5?

0;
1;
e;
5x4;

Question 3. What is the derivative of y = ex?

0;
ex;
e;
1;

Question 4: What is the derivative of y = ln x?

;
0;
e;
1;

Question 5. What is the derivative of y = sin x?

0;
cos x;
e;
1;

Question 1. Can a continuous function be differentiable?

No;
Yes;
only at x =;
only at x = 0;

Question 2: Is it always a continuous function is differentiable?

always;
never;
not always;
at x = 0;
in Vol. x =.

Question 3: Can a differentiable function to be continuous?

No;
Yes;
never;
in Vol. x = 0;
in Vol. x =.

Question 4. Is it always a differentiable function is continuous?

not always;
never;
in Vol. x = 0;
always.

Question 5. Find the second derivative of the function y = sin x.

cos x;
-sin x;
0;
1;
tg x.

Question 1. What is the main linear part of the increment function?

derivative;
Differential (DN);
function;
infinitesimal;
infinitely large.

Question 2. State the L'Hospital's rule.

If the right-hand side there is a limit;
;
;

Question 3: Which types of uncertainties can be opened using L'Hospital's rule?

{0};
;
cx 0;
cx;
x.

Question 4. Is the condition of the y = 0 at the point, which is not a boundary point of the domain of a differentiable function at the necessary condition for the existence of extremum at this point?

No;
Yes;
not always;
sometimes;

Question 5. Is the condition of the j = 0 m. X = a sufficient condition for the existence of extrema?

Yes;
No;
not always;
sometimes;

Question 1. What function is called a function of two variables?

f (x);
n = f (x, y, z);
z = f (x, y);
f (x) = const = c.

Question 2. Calculate the limit of the function.

0;
29;
1;
5;
2.

Question 3: Calculate the limit of

0;
1;
16;
18;
20.

Q4: Which lines are called lines of discontinuity?

straight;
consisting of break points;
parabola;
ellipses;

Question 5. Find the first derivative of the function at z = 3x + 2y.

1;
2;
0;
5;

Question 1. What is the function whose derivative is the given function?
Question 2. Locate the erroneous expression if - one of the primitives for a function, and C - arbitrary constant.
etc.

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