The post Easy Fast way to Find Null space, Hyper Plane, Solution to Ax=0, Orthogonal Matrix B such that AB=0. appeared first on JJtheTutor.

]]>This video covers a quick way to extract the null space or kernel of a matrix.

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The objective to solve this is assuming you can perform reduced row echelon form already. If you do not know how to perform RREF, watch this video: https://jjthetutor.com/echelon-forms-ef-ref-rref-the-difference-between-echelon-reduced-echelon-reduced-row-echelon/

Once you have the matrix in RREF form, it is as easy as changing the sign of a few numbers in order to pull out the set of vectors that span the null space, which is also called the Kernel or a hyper plane.

Matrix AB=0 – The null space can also be put into a matrix that will product with the original matrix to equal the zero vector or matrix.

View more examples via https://www.youtube.com/watch?v=J5u4fMEHojE&feature=emb_title

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Increase your final exam score by 25% without doing any studying! 3 simple techniques.

1) Put down all formulae, theorems, and or definitions down prior to answer any questions for each questions. This will generally guarantee 50% credit (depending on the professor.)

2) Do the easy problems first but make sure you answer them 100% correctly before moving on.

3) DO NOT SIMPLIFY!

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Use n=4 rectangles and left hand endpoints to estimate 1/(1+x^2). Is this an over-estimate or an under-estimate?

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