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ЕГЭ Задание №9. Тригонометрия

Authored by Александра Евсеева

Mathematics

10th - 11th Grade

Used 13+ times

ЕГЭ Задание №9. Тригонометрия
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10 questions

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1.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt


 Найдите 5 sinx, Найдите\ 5\ \sin x,\   если cosx=265и x(3π2; 2π)если\ \cos x=\frac{2\sqrt{6}}{5}и\ x\in\left(\frac{3\pi}{2}\text{; 2}\pi\right)  



(a)  

2.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt


 Найдите 20 cos(5π2+x)Найдите\ -20\ \cos\left(\frac{5\pi}{2}+x\right)  если cosx=725и x(1,5π ; 2π)если\ \cos x=\frac{7}{25}и\ x\in\left(1,5\pi\ \text{; 2}\pi\right)  



(a)  

3.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt


 Найдите 2cosx7sinx2sinx2cosx, если tg x =2Найдите\ \frac{2\cos x-7\sin x}{2\sin x-2\cos x},\ если\ tg\ x\ =2 



(a)  

4.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt


 Найдите tg x, если 3sinx+5cosx+12sinx+cosx+4=14Найдите\ tg\ x,\ если\ \frac{3\sin x+5\cos x+1}{2\sin x+\cos x+4}=\frac{1}{4} 



(a)  

5.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

Найдите значение выражения

 3cos(π+x)+2sin(3π2+x),3\cos\left(\pi+x\right)+2\sin\left(\frac{3\pi}{2}+x\right),  если cosx=35если\ \cos x=-\frac{3}{5}\text{}  



(a)  

6.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

Найдите значение выражения

 51cos4°sin86°+8\frac{51\cos4\degree}{\sin86\degree}+8 



(a)  

7.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

Найдите значение выражения

 46 tg 7°  tg 97°46\ tg\ 7\degree\ \cdot\ tg\ 97\degree 



(a)  

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