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Trigonometrie

Authored by Nicolae Popa

Mathematics

9th Grade

Used 41+ times

Trigonometrie
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12 questions

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1.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

 Calculati sin2x  + cos2x  pentru  x RCalculati\ \sin^2x\ \ +\ \cos^2x\ \ pentru\ \forall\ x\in\ R  

1

0

cos 2x

sin 2x

2.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

 Calculati cos2x  sin2x  pentru  x RCalculati\ \cos^2x\ -\ \sin^2x\ \ pentru\ \forall\ x\in\ R  

1

0

cos 2x

sin 2x

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

cos 2x =

1 - 2sin2x

1 - 2cos2x

2sinxcosx

2cos2x + 1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

cos 2x =

1 + 2sin2x

1 - 2cos2x

2sinxcosx

2cos2x - 1

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