Question

Determine \(\mathbf{r}(t)\) if \(\mathbf{r}'(t) = 1t^3 \mathbf{i} + 4\sqrt{t} \mathbf{j} + \frac{5}{t^2} \mathbf{k}\) and \(\mathbf{r}(1) = 5 \mathbf{i} + 1 \mathbf{j} + 4 \mathbf{k}\) \(\mathbf{r}(t) = \underline{\qquad} \mathbf{i} + \underline{\qquad} \mathbf{j} + \underline{\qquad} \mathbf{k}\) Submit Answer Tries 0/8 Evaluate the integral \(\int_0^1 \left( \frac{5}{1+t^2} \mathbf{i} + \frac{4t}{1+t^2} \mathbf{j} + (5 + 1t + 3t^2) \mathbf{k} \right) dt\) \(\underline{\qquad} \mathbf{i} + \underline{\qquad} \mathbf{j} + \underline{\qquad} \mathbf{k}\)

          Determine \(\mathbf{r}(t)\) if
\(\mathbf{r}'(t) = 1t^3 \mathbf{i} + 4\sqrt{t} \mathbf{j} + \frac{5}{t^2} \mathbf{k}\)
and
\(\mathbf{r}(1) = 5 \mathbf{i} + 1 \mathbf{j} + 4 \mathbf{k}\)
\(\mathbf{r}(t) = \underline{\qquad} \mathbf{i} + \underline{\qquad} \mathbf{j} + \underline{\qquad} \mathbf{k}\)
Submit Answer Tries 0/8
Evaluate the integral
\(\int_0^1 \left( \frac{5}{1+t^2} \mathbf{i} + \frac{4t}{1+t^2} \mathbf{j} + (5 + 1t + 3t^2) \mathbf{k} \right) dt\)
\(\underline{\qquad} \mathbf{i} + \underline{\qquad} \mathbf{j} + \underline{\qquad} \mathbf{k}\)
        
Show more…
Determine 𝐫(t) if
𝐫'(t) = 1t^3 𝐒 + 4√(t)𝐣 + (5)/(t^2)𝐀
and
𝐫(1) = 5 𝐒 + 1 𝐣 + 4 𝐀
𝐫(t) =     𝐒 +     𝐣 +     𝐀
Submit Answer Tries 0/8
Evaluate the integral
∫0^1 ( (5)/(1+t^2)𝐒 + (4t)/(1+t^2)𝐣 + (5 + 1t + 3t^2) 𝐀) dt
𝐒 +     𝐣 +     𝐀

Added by Amy E.

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Calculus: Early Transcendentals
Calculus: Early Transcendentals
James Stewart 8th Edition
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Determine r(t) if r^(')(t)=1t^(3)i+4sqrt(t)j+(5)/(t^(2))k and r(1)=5i+1j+4k r(t)=,i+ k Tries( 0)/(8) Evaluate the integral int_0^1 ((5)/(1+t^(2))i+(4t)/(1+t^(2))j+(5+1t+3t^(2))k)dt i+,j+ Determine r(tif rt=1i+4j+ k t2 and r1-5i+1j+4k 71 i+ j+ k Submit Answer Tries 0/8 Evaluate the integral 5 4t i4 1+2 dt i+ k j+
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Transcript

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00:01 In the question they given vectors i bar equal to i and j bar equal to j.
00:06 Here we have to find out to resolve the vectors a bar, b bar, v bar, w bar into components.
00:14 In this figure we have some modifications easy to understandable.
00:21 It is 0 minus 1, minus 2, minus 3.
00:26 Right side 1, 2, 3.
00:31 1 2 3 here minus 1 minus 2 it is u it is b it is v it is a we have to find out these 4 vectors into components first a bar in this angle is theta so we have degrees 45 degrees 45 degrees here also same theta a bar equal to the first vector is bar a bar equal to 2 cos theta i plus 2 sine theta i here theta value is 45 degrees so we can write 2 cos 45 degrees i plus 2 sign 45 degrees j here i j that equal to cos 45 is 2 by root 2, cos 45 is 1 by root so 2 1 by root to i plus sign 45 is 1 by root to j.
01:52 Here the components of a bar is a bar equal to root 2 we command root 2 root 2 plus root 2j that equal to we can write this vector in this form a bar equal to 2 i plus 2 j it is in the form of component it is the solution of a vector here we have to find vector into component the next question b here vector we have to find out into components.
02:42 B bar equal to same b cos theta i plus b sine theta j.
02:49 Here we have to take this values in this line.
02:54 Here b value the vector is 3 and minus 1...
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