t x dx ?
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2
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2
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3
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1
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1
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t t x x C ; B) * t x
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x x C ; C) x x C ; D)
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C .
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A)
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3
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3
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2
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t
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x
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75. (sin x cosa)dx ?
A) * cos x x cosa C ; B) cosx sin a C ;
C) xsin a sin x C ; D) cos x sin a C .
76. 2x2 1sin 2xdx ni bo’laklab integrallashda dv(x) sifatida qaysi ifoda olinadi?
A) 2x21dx; B) 4xdx ; C ) * sin 2xdx ; D) 2xdx .
77. x2 1arcsin3xdx ni integrallash uchun ux deb qaysi ifodani olish lozim?
A) x2 1; B) 3x ; C) * arcsin3x ; D) 2x .
78. 2x 1ex2 1dx ni bo’laklab integrallashda dvx sifatida qaysi ifoda olinadi?
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A)
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* 2x 1dx ;
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B) x2 1dx ;
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C) ex2 1dx ;
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D) 2xdx .
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79. x cos xdx ?
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A)
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* xsin x cos x C;
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B) xsin x cosx C;
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C) sin x cos x C;
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D) sin x x cosx C.
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xe x dx ?
A) * (x 1)e
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x
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C ;
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x
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C ;
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x
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(x 1) C ;
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x2
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x
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B) xe
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C) e
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D)
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x e
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C .
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2
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