Преобразуйте выражение sin(x)cos(x) в виде суммы.

Тригонометрические выражения

Quiz
•
Mathematics
•
10th Grade
•
Hard
Гульнара Сеитова
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin(x/2)cos(x/2)
0.5cos(2x)
0.5sin(2x)
sin^2(x)cos(x)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Упростите выражение tan(x)sec(x).
cos(x)/sin^2(x)
sin(x)/cos^2(x)
1/cos(x)
sin(x)/cos(x)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите значение выражения sin^2(x) - cos^2(x) при x = π/4.
0
π/4
-1
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Преобразуйте выражение cos(2x) в более простую форму.
2cos^2(x) - 1
cos^2(x) - sin^2(x)
2cos(x)
cos(x) + cos(x)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите значение выражения sin(π/6)cos(π/3).
1/5
1/3
1/4
1/2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Упростите выражение tan(x)sin(x).
sin(x)/cos(x)
sin^2(x)/cos(x)
tan(x)/sin(x)
cos(x)/sin(x)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите значение выражения cos^2(x) - sin^2(x) при x = π/3.
-1/2
-1
0
1/2
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