
МАТ ТРИГОНОМЕТРИЯ
Authored by Togzhan Azimbai
Mathematics
11th Grade
Used 111+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
𝑐𝑜𝑠(𝛼 + 𝛽) =
𝑐𝑜𝑠𝛼𝑐𝑜𝑠𝛽 + 𝑠𝑖𝑛𝛼𝑠𝑖𝑛𝛽
𝑐𝑜𝑠𝛼𝑐𝑜𝑠𝛽 − 𝑠𝑖𝑛𝛼𝑠𝑖𝑛𝛽
𝑠𝑖𝑛𝛼𝑠𝑖𝑛𝛽 − 𝑐𝑜𝑠𝛼𝑐𝑜𝑠𝛽
𝑠𝑖𝑛𝛼𝑠𝑖𝑛𝛽 * 𝑐𝑜𝑠𝛼𝑐𝑜𝑠𝛽
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
𝑠𝑖𝑛𝛼 ∙ 𝑐𝑜𝑠𝛽 =
1/2 (cos(𝛼 - 𝛽) + 𝑠𝑖𝑛(𝛼 − 𝛽))
1/2 (𝑠𝑖𝑛(𝛼 + 𝛽) + 𝑠𝑖𝑛(𝛼 + 𝛽))
1/2 (𝑠𝑖𝑛(𝛼 + 𝛽) + 𝑠𝑖𝑛(𝛼 − 𝛽))
1/2 (cos(𝛼 + 𝛽) + 𝑠𝑖𝑛(𝛼 − 𝛽))
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
𝑠𝑖𝑛𝛼 ∙ 𝑠𝑖𝑛𝛽 =
= 1 /2 (𝑐𝑜𝑠(𝛼 − 𝛽) − 𝑐𝑜𝑠(𝛼 + 𝛽))
= 1 /2 (𝑐𝑜𝑠(𝛼 +𝛽) − 𝑐𝑜𝑠(𝛼 + 𝛽))
= 1 /2 (sin(𝛼 − 𝛽) − (𝑐𝑜𝑠 + 𝛽))
= 1 /2 (sin(𝛼 + 𝛽) − (𝑐𝑜𝑠 + 𝛽))
4.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
𝑐𝑜𝑠2𝛼 =
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
𝑠𝑖𝑛(𝑎𝑟𝑐𝑠𝑖𝑛𝑥)=
cosx
x
sinx
arcsinx
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