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Find the Maclaurin series for f(x) using the definition of a Maclaurin series.Also find the associated radius of convergence.
f(x) = e ^-2x;
=[pic]
The above exponential series is valid for all values of x; hence, radius of convergence will be infinity.
f(x)=xcosx;
=[pic]
Use a Maclaurin series in Table 1 to obtain the Maclaurin series for the given function.
f(x)=e^x + 2e^-x;
[pic]
f(x)=x² ln(1+3x³);
[pic]
Evaluate the indefinite integral as an infinite series.
∫[(e^x)-1/x]dx
[pic]
Find the Taylor polynomial T3 (x) for the function f centered at the number a.
f(x)=xcosx,a=0
(a)Approximate f by a Taylor polynomial with degree n a the number a.
=[pic]
(b)Use Taylor's Inequality to estimate the accuracy of the approximation f(x)≈Tn (x) when x lies in the given interval.
f(x)=x^-2, a=1, n=2, 0.9≤x≤1.1 Find (a) and (b).
=1-2(x-1)+3(x-1)2-………
T2(x) =f(x)-T2(x)
There exists ξ between 1 and x such that R2(x) = [pic].
= [pic]
|R2(x)| = [pic] in the interval [0.9, 1]
=[pic] in the interval [1,1.1]
Sketch the curve by using the parametric equations to plot points. Indicate with an arrow the direction in which yhe curve is traced as t increases.
x=t², y=t³-4t, -3≦t≦3.
The following table gives values of t, x and y.
|t |x |y |
|-3 |9 |-15 |
|-2.5 |6.25 |-5.625 |
|-2 |4 |0 |
|-1.5 |2.25 |2.625 |
|-1 |1 |3 |
|-0.5 |0.25 |1.875 |
|0 |0 |0 |
|0.5 |0.25 |-1.875 |
|1 |1 |-3 |
|1.5 |2.25 |-2.625 |
|2 |4 |0 |
|2.5 |6.25 |5.625 |
|3 |9 |15 |
Plot is given below.
[pic]
(a)Eliminate the parameter to find a Cartesian equation of the curve.
y= t^3-4t=t(t^2-4) = t(x-4)
Or, y^2 = t^2(x-4)^2 = x(x-4)^2
Or, y^2 = x(x-4)^2 is the Cartesian equation.
Plot is given above.
(b)Sketch the curve and indicate with an arrow the direction in which the curve is traced as the parameter increases.
y=√t+1, y=√t-1 Find (a) and (b).
Kindly clarify x and y functions.
Describe the motion of a particle with position(x,y) as t varies in the given interval.
x=2sint, y=4+cost, 0≦t≦3π/2.
| |t |x |y |
|0 |0 |0 |5 |
|30 |0.52359878 |1 |4.866025 |
|60 |1.04719755 |1.732051 |4.5 |
|90 |1.57079633 |2 |4 |
|120 |2.0943951 |1.732051 |3.5 |
|150 |2.61799388 |1 |3.133975 |
|180 |3.14159265 |2.45E-16 |3 |
|210 |3.66519143 |-1 |3.133975 |
|240 |4.1887902 |-1.73205 |3.5 |
|270 |4.71238898 |-2 |4 |
[pic]
sint = x/2 and cost = y-4
Hence, x^2/4 +(y-4)^2=sin2t+cos2t=1 is the Cartesian equation and plot is given above.
[pic]
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