Двойные углы: синус и косинус

Двойные углы: синус и косинус

10th Grade

6 Qs

quiz-placeholder

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Двойные углы: синус и косинус

Двойные углы: синус и косинус

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Hard

Created by

Ольга Ольга

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Упрости выражение: 2sin15⁰cos15⁰

cos30⁰

2sin30⁰

2sin60⁰

sin60⁰

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Упростите выражение: 4cos(-15⁰)sin(-15⁰)

cos30⁰

2cos30⁰

sin(-30⁰)

-2sin30⁰

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Упрости выражение: sin2x-cos2x

cos2x

2cos2x

-cos2x

sin2x

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Упрости выражение: cos220⁰-sin220⁰

cos240⁰

cos40⁰

1-cos20⁰

sin40⁰

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Найди значение данного выражения

1/2

√2/2

√3/2

-√2/2

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Найдите значение данного выражения

1/2

√2/2

1

√3/2

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