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matematika kelas 11

Authored by Ali Masngut

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11th Grade

Used 13+ times

matematika kelas 11
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19 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui sin A= 35\frac{3}{5}  cos B = 725\frac{7}{25}  , A  dan B adalah sudut lancip. Tentukan nilai sin ( A - B) !

 44125\frac{44}{125}  

 21125\frac{21}{125}  

 325\frac{3}{25}  

 100125\frac{100}{125}  

 2575\frac{25}{75}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Buktikan cos (α+β) cos (αβ) = cos2αsin2βBuktikan\ \cos\ \left(\alpha+\beta\right)\ \cos\ \left(\alpha-\beta\right)\ =\ \cos^2\alpha-\sin^2\beta 

 cos2αsin2β\cos^2\alpha-\sin^2\beta  

 sin2αcos2β\sin^2\alpha-\cos^2\beta  

 sec2αcos2β\sec^2\alpha-\cos^2\beta  

 cosec2α+sec2β\operatorname{cosec}^2\alpha+\sec^2\beta  

 cos2α+sin2β\cos^2\alpha+\sin^2\beta  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos15°+cos 75° =........\cos15\degree+\cos\ 75\degree\ =........  

 14\frac{1}{4}  

 24\frac{2}{4}  

 34\frac{3}{4}  

 00  

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan titik (2a,-5) terletak pada lingkaran  x2+y2=41x^2+y^2=41  . Tentukan nilai a......

 ±1\pm1  

 ±2\pm2  

4

5

0

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan pusat dan jari-jari lingkaran yang persamaannya
 x2+y28x+2y+1=0x^2+y^2-8x+2y+1=0  

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0

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan persamaan garis singgung pada lingkaran pada
 Lx2+y22x+4y4=0L\equiv x^2+y^2-2x+4y-4=0  yang sejajar garis 5x2y+15=05x-2y+15=0  ........

 5x12y+10=0 dan 5x12y68=05x-12y+10=0\ dan\ 5x-12y-68=0  

 5x4y+4=0 dan 5x4y+4=05x-4y+4=0\ dan\ 5x-4y+4=0  

 5x12y+15 =0 dan 5x12y+10=05x-12y+15\ =0\ dan\ 5x-12y+10=0  

 5x12y+15=0 dan 5x12y+12=05x-12y+15=0\ dan\ 5x-12y+12=0  

 5x4y+10=0 dan 5x4y+12=05x-4y+10=0\ dan\ 5x-4y+12=0  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan nilai p. Jika nilai suku banyak 2x5+px314x+32x^5+px^3-14x+3  untuk  x1x-1  sama dengan 20........

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