ТРИГОНОМЕТРИЯ🎀

ТРИГОНОМЕТРИЯ🎀

9th Grade

12 Qs

quiz-placeholder

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ТРИГОНОМЕТРИЯ🎀

ТРИГОНОМЕТРИЯ🎀

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Easy

Created by

Аделя Жумабай

Used 1+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Негізгі тригонометриялық тепе-теңдік

sin²α + cos²α = 0

sin²α + cos²α = 1

sin²α - cos²α = 1

sin²α + cos²α = 2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Негізгі тригонометриялық тепе-теңдік

tgα = 1 / sinα

tgα = 1 / cosα

tgα = sinα / cosα

tgα = cosα / sinα

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Негізгі тригонометриялық тепе-теңдік

ctgα = 1 / sinα

ctgα = cosα / sinα

ctgα = 1 / cosα

ctgα = sinα / cosα

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Қос бұрыш

sin(2α) = sinα + cosα

sin(2α) = 2·sinα·cosα

sin(2α) = sin²α + cos²α

sin(2α) = 2·cosα·tgα

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Қос бұрыш

cos(2α) = 2·cosα·sinα

cos(2α) = 1 - sin²α

cos(2α) = cos²α - sin²α

cos(2α) = cos²α + sin²α

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Дәреженің төмендеуі

sin²(α/2) = (1 + cosα) / 2

sin²(α/2) = 1 - cosα

sin²(α/2) = (1 - cosα) / 2

sin²(α/2) = cosα / 2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Дәреженің төмендеуі

cos²(α/2) = (1 + cosα) / 2

cos²(α/2) = sinα / 2

cos²(α/2) = (1 - cosα) / 2

cos²(α/2) = 1 - sinα

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