 Cos 7x 3 2. Cos9x-cos7x корень из 2 sinx. Cos 7x 3 2. Lim 1-cos2x/x sin2x. Sin 7x формула. |  Sin^6x*cosx cos 6 x * sin x = sin 2x. Sin2x+2cos2x=0. син(2pi-x). Sin2x. Cosx+cos3x=0. |
 4sin3x cos 2 3x 4. Lim sin x/x. 2cos(pi+x)^2-sin(x-pi)=1. Cosx cos2x cos3x. Cos4x формула. |  Sin7xcos2x+cos7xsin2x=1/3. 2 sin x cos x. Cos 7x 3 2. Sin x + sin 2 x 2 = cos 2 x 2. Sin7x. |
 Cos3x+cosx=4cos2x. Cos 7x 3 2. Cos2x+cos3x. Sin 3sin cos x x x. Cos 7x 3 2. |  3cos^2 2x + 7sin2x - 3 = 0. Cos2x. Sin7x-sinx cos4x. Cosx cos2x cos3x. Cos 3/2. |
 Sin x + sin 2 x 2 = cos 2 x 2. 7cos(x)-sin(2x)=0. Cos2x. Cos 7x 3 2. Cos x = 1. | -9%5C%5C%5C%5C11(cos%5E2x-sin%5E2x)%3D-7sin(%5Cfrac%7B%5Cpi%20%7D%7B2%7D-x)-9%5C%5C%5C%5C11(cos%5E2x-(1-cos%5E2x))%3D-7cosx-9%5C%5C%5C%5C11(2cos%5E2x-1)%2B7cosx%2B9%3D0%5C%5C%5C%5C22cos%5E2x%2B7cosx-2%3D0%5C%5C%5C%5CD%3D7%5E2%2B4%5Ccdot%2022%5Ccdot%202%3D225%3D15%5E2%5C%3B%20%2C%5C%5C%5C%5C(cosx)_1%3D%5Cfrac%7B-7-15%7D%7B44%7D%3D-%5Cfrac%7B1%7D%7B2%7D%5C%3B%20%2C%5C%3B%20%5C%3B%20(cosx)_2%3D%5Cfrac%7B-7%2B15%7D%7B44%7D%3D%5Cfrac%7B2%7D%7B11%7D%5C%5C%5C%5Ca)%5C%3B%20%5C%3B%20cosx%3D-%5Cfrac%7B1%7D%7B2%7D%5C%3B%20%2C%5C%5C%5C%5Cx%3D%5Cpm%20(%5Cpi%20%3Cbr%20%2F%3E%20-arccos%5Cfrac%7B1%7D%7B2%7D)%2B2%5Cpi%20n%3D%5Cpm%20(%5Cpi%20-%5Cfrac%7B%5Cpi%20%7D%7B3%7D)%2B2%5Cpi%20n%3D%5Cpm%20%5Cfrac%7B2%5Cpi%20%7D%7B3%7D%2B2%5Cpi%20n%2C%5C%3B%20n%5Cin%20Z%5C%5C%5C%5Cb)%5C%3B%20%5C%3B%20cosx%3D%5Cfrac%7B2%7D%7B11%7D%5C%5C%5C%5Cx%3D%5Cpm%20arccos%5Cfrac%7B2%7D%7B11%7D%2B2%5Cpi%20k%2C%5C%3B%20k%5Cin%20Z) 3sin 2 x+7cos2x-3=0. Cos7x cos2x sin7x sin2x 1/3. Cos7x. Cos9x-cos7x=√2sin. Cos2x-3cos(-x)+2. |
 Sin7x-sinx cos4x. Sin2x+sin2x. Cos3x+cos3x 4cos2x решение. Cos2x. решите уравнение: sin〖x sin3x+cos4x=0〗. |  Cos(7x)=5. 1-cos2x. Cos5x=3. Sin7x. син х = 2/7. |
 вычисление пределов таблица. Sin2x. 2-x2/7 x/2. Cos 7x 3 2. 2cos2x -7 cos x-4=0. |  Sin x 2/7. Sin7xcos2x cos7xsin2x. Sin2x. Cos 7x 3 2. Cos 7x 3 2. |
 Cos2x-3sin(-x)-2=0. решение уравнений sin x= 8/5. Cos5x. Cos 7x 3 2. Cos 7x 3 2. |  Cos 7x 3 2. Cos 7x 3 2. Cosx cos2x cos3x. корень 7sin x - cos 2x + 2 cos x = 0. Sin3x-sin7x=0. |
 Cos3x+cos3x 4cos2x решение. корень 7sin x - cos 2x + 2 cos x = 0. Cos2x−2x⋅ sin2x. Cos 7x 3 2. Sin 2x sin x 2 cos x 1. |  Cos 7x 3 2. Cos 7x 3 2. Cos(2x)+sin2x= 3 4. 1-cos5x. Sin2x cos2x. |
 Cosx=3/5. Cos 7x 3 2. Sin2x+sin2x=3. Sin7x. Cos 7x 3 2. |  Cos 7x 3 2. Cos3x. 3cos2x+7sinx-5. решить уравнение cos2x=0. Cos и sin 2x. |
 Cos. Cos2x. Cos 7x 3 2. Sin x + cos x. Lim x sin3x/1-cos2x. |  Sin3x-cos3x корень из 2 sinx. |
