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Valemid - gümnaasium

Authored by Helgi Kaiv

Mathematics

12th Grade

Used 16+ times

Valemid - gümnaasium
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101 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Avalda x, kui  amx=bc\frac{a}{mx}=\frac{b}{c}  .

 x=mbacx=\frac{mb}{ac}  

 x=acbx=\frac{ac}{b}  

 x=acmbx=\frac{ac}{mb}  

 x=mbacx=\frac{mb}{ac}  

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 anbn=a^n\cdot b^n=  

 (ab)n\left(ab\right)^n  

 abnab^n  

 (ab)2n\left(ab\right)^{2n}  

 (ab)n2\left(ab\right)^{n^2}  

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 2x23=2^{x^{ }}\cdot2^3=  

 43x4^{3x}  

 4x+34^{x+3}  

 2x+32^{x+3}  

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 5x1=5^{x-1}=  

 5x55^x-5  

 5x5\frac{5^x}{5}  

 5x515^x\cdot5^{-1}  

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 (2x3)2=\left(2x-3\right)^2=  

 4x2+94x^2+9  

 4x212x+94x^2-12x+9  

 4x294x^2-9  

 2x26x92x^2-6x-9  

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 cos4xsin4x = \cos^4x-\sin^4x\ =\   

 cos22x\cos^22x  

 (cos2xsin2x)(cos2x + sin2x) =cos2x 1 =cos2x\left(\cos^2x-\sin^2x\right)\left(\cos^2x\ +\ \sin^2x\right)\ =\cos2x\ \cdot1\ =\cos2x  

 (cos2xsin2x)(cos2x + sin2x) =cos22x 1 =cos22x\left(\cos^2x-\sin^2x\right)\left(\cos^2x\ +\ \sin^2x\right)\ =\cos^22x\ \cdot1\ =\cos^22x  

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