4-нұсқа

A) 0

B) 60

C) 15

D) 12

A) $$\left(-\infty;\ 0\right]\cup\left(\frac{2}{3};1\right]$$

B) $$\left[0;1\right]$$

C) $$\left(-\infty;\ 0\right]\cup\left(1;+\infty\right]$$

D) $$\left(-\infty;\ \frac{2}{3}\right)\cup\left(\frac{2}{3};\ +\infty\right)$$

A) $$\frac{1991}{1989}$$

B) $$\frac{1989}{1991}$$

C) $$\frac{1995}{1997}$$

D) $$0$$

A) $$\frac{1}{2};\ 1$$

B) $$-2;\ 2$$

C) $$\frac{3}{2};\ 3$$

D) $$0;\ 1$$

A) $$\frac{1}{12}\cos6x-\frac{1}{2}\cos x+C$$

B) $$\frac{1}{2}\cos6x+\frac{1}{2}\cos x+C$$

C) $$-\frac{1}{24}\cos12x+\frac{1}{4}\cos2x+C$$

D) $$-\frac{1}{2}\cos6x+\frac{1}{2}\cos x+C$$

A) 4,15

B) 4,22

C) 4,37

D) 4,19

A) -4

B) -9

C) 0

D) -1

A) 2,5

B) -2

C) 3

D) 1

A) $$2\sqrt[]{2}$$

B) $$\sqrt[]{5}$$

C) $$3\sqrt[]{6}$$

D) $$\sqrt[]{2}$$

A) $$\sin\ \frac{\phi}{2}$$

B) $$\sin\ \frac{\phi}{4}$$

C) $$\cos\ \frac{\phi}{3}$$

D) $$\cos\ \frac{\phi}{4}$$