Questions Answered

mr.mayes96:
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John is lifting a 1.5 kg toy to a height of 1.2 m above the ground. How much work is done??
 updated one year ago
 10 replies
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nexis:
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[Linear Algebra]
What is Problem 7.2 asking for (Answer included):
…
 updated one year ago
 5 replies
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nexis:
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Question to anyone who has completed MIT 18.02SC MV Calculus:
PS6 Section 2J at http://ocw.mit.edu/courses/mathematics/1802scmultivari…
 updated one year ago
 5 replies
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nexis:
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MV Calculus!!!!
2D9a)
Question:
…
 updated one year ago
 4 replies
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MV Calculus: 2B9B
http://ocw.mit.edu/courses/mathematics/1802scmultivariablecalculusfall2010/2.partialderivatives/partafunctions…
 updated one year ago
 3 replies
 1 Medal

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MV Calculus: 2H6A
Question: http://ocw.mit.edu/courses/mathematics/1802scmultivariablecalculusfall2010/2.partialderivatives/parta…
 updated one year ago
 7 replies
 1 Medal

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Linear Algebra:
In Question 1J9D
http://ocw.mit.edu/courses/mathematics/1802scmultivariablecalculusfall2010/partavectorsdetermina…
 updated one year ago
 8 replies
 1 Medal

nexis:
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Linear Algebra: Question I15: http://ocw.mit.edu/courses/mathematics/1802scmultivariablecalculusfall2010/partavectorsdeterminantsa…
 updated one year ago
 20 replies
 2 Medals

nexis:
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(Linear Algebra):
1. Why is N*(P0P) called the pointnormal form for the plane? Aren't these just two orthogonal vectors, that do not descr…
 updated 2 years ago
 3 replies
 1 Medal

nexis:
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A homogeneous system of equations only has a nontrivial solution if A is unequal to 0.
True or false?
…
 updated 2 years ago
 18 replies
 1 Medal

nexis:
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The following link explains how to find distances between a point and a plane: http://ocw.mit.edu/courses/mathematics/1802scmultivariable…
 updated 2 years ago
 3 replies
 1 Medal

nexis:
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For what value(s) of c will 1/5i1/5j+ck be a unit vector?
For the solution to this equation. We write:
…
 updated 2 years ago
 3 replies
 2 Medals

nexis:
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{Vectors}
The component vector of A(6,2) along B(1,3) is 0.
See (http://www.wolframalpha.com/input/?i=plot+vector+%7B6%2C+2%7D+%7B1%2C+3…
 updated 2 years ago
 18 replies
 1 Medal

nexis:
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Using vectors and dot product show the diagonals of a parallelogram have equal lengths if and only if it’s a rectangle.
The proof is give…
 updated 2 years ago
 29 replies
 1 Medal

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Statistics:
How do you find standard deviation of sample in this kind of problem?!?
 updated 2 years ago
 7 replies
 1 Medal

nexis:
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Sigh..one more:
Related rates, Problem in attachment.
 updated 2 years ago
 7 replies
 1 Medal

nexis:
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Compute the following limit:
 updated 2 years ago
 13 replies
 2 Medals

nexis:
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Use the definition of the derivative to compute:
d/dx x/(x+1)
 updated 2 years ago
 8 replies
 2 Medals

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Probability: Please answer the question attached.
Shouldn't this be (1/12)*(1/11)*(1/10)*(1/9)*(1/8) since these are independent events?
 updated 2 years ago
 6 replies
 1 Medal

nexis:
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Probability: In the attached file, what is P46? I.e. what is this question asking for?
The probability of a test score being 46?
 updated 2 years ago
 6 replies
 1 Medal

nexis:
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Set following equation up in partial fraction decomposition form:
…
 updated 2 years ago
 15 replies
 2 Medals

nexis:
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Question on Parametric Equations:
How do we get from 2sin(t)cos(t)
…
 updated 2 years ago
 8 replies
 2 Medals

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Question about parametric equations, details in reply:
Related to:
http://ocw.mit.edu/courses/mathematics/1801scsinglevariablecalculus…
 updated 2 years ago
 8 replies
 1 Medal

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Integrate by parts:
 updated 2 years ago
 11 replies
 2 Medals

nexis:
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Evaluate the following indefinite integral:
∫sin^2(4x)cos^2(4x)dx
…
 updated 2 years ago
 5 replies
 1 Medal

nexis:
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Evaluate the following integral:
 updated 2 years ago
 6 replies
 1 Medal

nexis:
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How is:
sqrt(a^2a^2sin^2(x)
=a*sqrt(1sin^2(x))
 updated 2 years ago
 6 replies
 1 Medal

nexis:
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Trig Integrals:
In this Youtube video (http://www.youtube.com/watch?feature=player_embedded&v=y_CA5btuoQk#!) from 4:20 to 5:20 the Instruct…
 updated 2 years ago
 8 replies
 1 Medal

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In 4a)
http://ocw.mit.edu/courses/mathematics/1801scsinglevariablecalculusfall2010/exam3/materialsforexam3/MIT18_01SCF10_exam3s…
 updated 2 years ago
 14 replies
 1 Medal

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Weighted Averages: http://ocw.mit.edu/courses/mathematics/1801scsinglevariablecalculusfall2010/partcaveragevalueprobabilityandnu…
 updated 2 years ago
 3 replies
 1 Medal
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