9.应用3阶泰勒公式求下列各数的近似值,并估计误差:-|||-(1) sqrt [3](30); (2)sin18°.
9.已知sin x在30°,45°,60°的值分别为(1)/(2),(sqrt(2))/(2),(sqrt(3))/(2),分别用一次插值和二次插值求sin 5
计算下列各根式的近似值:(1)sqrt [3](996)(2)sqrt [3](996)计算下列各根式的近似值:(1)(2)
10.计算下列各根式的近似值:-|||-(1) sqrt [3](996);-|||-(2) sqrt [6](65.).
0.计算下列各根式的近似值:-|||-(1) sqrt [3](996);
利用泰勒公式求下列极限:-|||-(1) lim _(xarrow +infty )(sqrt [3]({x)^3+3(x)^2}-sqrt [4]({x)^4
当|x|较小时,证明下列近似公式:-|||-(1) sin xapprox x :-|||-(2) ^xapprox 1+x ;-|||-(3) sqrt [3
dfrac (sqrt {3)}(2)sin (15)^circ +dfrac (1)(2)cos (15)^circ 的值为( )A.dfrac
1.求下列函数的自然定义域:-|||-(1) =sqrt (3x+2);-|||-(3) =dfrac (1)(x)-sqrt (1-{x)^2};-|||-(
求下列极限:lim _(xarrow 0)dfrac (sin x-tan x)((sqrt [3]{1+{x)^2}-1)(sqrt (1+sin x)-1)