znanija.com/task/34753927
Найдите производную функции
1.а) y =0,5e⁴ˣ⁻³
y ' =(0,5e⁴ˣ⁻³ ) ' =0,5*(e⁴ˣ⁻³ ) ' =0,5*(e⁴ˣ⁻³ )* (4x -3) ' =0,5*(e⁴ˣ⁻³ )* ( (4x)' -3' ) ) =
0,5*(e⁴ˣ⁻³ ) *( 4(x)' -0 ) ) =0,5*(e⁴ˣ⁻³ ) 4*1 =2(e⁴ˣ⁻³ ).
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1.б) y =x²ctgx * * * (u*v) ' = (u ) ' *v + u* (v) ' * * *
y ' = (x²*ctgx) ' = (x²) ' *ctgx + x²*(ctgx) ' =2xctgx +x²(-1/sin²x) =
= 2xctgx - x²/sin²x . || 2x - x²(1+ctg²x) = x (2 -x -xctg²x) ||
1.в) y = x²/ (3 - 4x) * * * (u/v)' = (u'*v - u*v')/v² * * *
y '= ( x²/ (3 - 4x) ) ' = ( (x²)' *(3 -4x) - x²*(3 -4x) ' ) / (3 - 4x)² =
( 2x*(3 -4x) - x²*( (3) ' - (4x) ' ) ) / (3 - 4x)² =
( 2x*(3 -4x) - x²*(0-4*(x) ' ) ) / (3 - 4x)² = ( 2x*(3 -4x) + 4x² ) / (3 - 4x)² =
( 6x - 8x² + 4x² ) / (3 - 4x)² =( 6x - 4x² ) / (3 - 4x)² .
|| =2x(3 - 4x)/(3 - 4x)² = 2x / (3 - 4x) . ||
1.г) y = 4√(1+4x)
y ' = (4√(1+4x) ) ' =4*(√(1+4x) ) ' =4*( (1+4x)¹/ ² ) ' =4*(1/2)* (1+4x)- ¹/ ² *(1+4x) '
2* 1/√(1+4x) * 4 = 8 /√(1+4x) .
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znanija.com/task/34753927
Найдите производную функции
1.а) y =0,5e⁴ˣ⁻³
y ' =(0,5e⁴ˣ⁻³ ) ' =0,5*(e⁴ˣ⁻³ ) ' =0,5*(e⁴ˣ⁻³ )* (4x -3) ' =0,5*(e⁴ˣ⁻³ )* ( (4x)' -3' ) ) =
0,5*(e⁴ˣ⁻³ ) *( 4(x)' -0 ) ) =0,5*(e⁴ˣ⁻³ ) 4*1 =2(e⁴ˣ⁻³ ).
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1.б) y =x²ctgx * * * (u*v) ' = (u ) ' *v + u* (v) ' * * *
y ' = (x²*ctgx) ' = (x²) ' *ctgx + x²*(ctgx) ' =2xctgx +x²(-1/sin²x) =
= 2xctgx - x²/sin²x . || 2x - x²(1+ctg²x) = x (2 -x -xctg²x) ||
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1.в) y = x²/ (3 - 4x) * * * (u/v)' = (u'*v - u*v')/v² * * *
y '= ( x²/ (3 - 4x) ) ' = ( (x²)' *(3 -4x) - x²*(3 -4x) ' ) / (3 - 4x)² =
( 2x*(3 -4x) - x²*( (3) ' - (4x) ' ) ) / (3 - 4x)² =
( 2x*(3 -4x) - x²*(0-4*(x) ' ) ) / (3 - 4x)² = ( 2x*(3 -4x) + 4x² ) / (3 - 4x)² =
( 6x - 8x² + 4x² ) / (3 - 4x)² =( 6x - 4x² ) / (3 - 4x)² .
|| =2x(3 - 4x)/(3 - 4x)² = 2x / (3 - 4x) . ||
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1.г) y = 4√(1+4x)
y ' = (4√(1+4x) ) ' =4*(√(1+4x) ) ' =4*( (1+4x)¹/ ² ) ' =4*(1/2)* (1+4x)- ¹/ ² *(1+4x) '
2* 1/√(1+4x) * 4 = 8 /√(1+4x) .
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найти производную
1)
2)
3)
4)