In one sentence, describe what the following article is about: Remember, you can pick any row or column as your reference. You'll get the same answer no matter which you pick. If you pick a row or column with zeros, you only need to calculate the cofactor for the nonzero elements. Here's why:  Let's say you pick row 2, with elements a21, a22, and a23. To solve this problem, we'll be looking at three different 2x2 matrices. Let's call them A21, A22, and A23. The determinant of the 3x3 matrix is a21|A21| - a22|A22| + a23|A23|. If terms a22 and a23 are both 0, our formula becomes a21|A21| - 0*|A22| + 0*|A23| = a21|A21| - 0 + 0 = a21|A21|. Now we only have to calculate the cofactor of a single element. If you take the values of one row and add them to a different row, the determinant of the matrix does not change. The same is true of columns. You can do this repeatedly — or multiply the values by a constant before adding — to get as many zeroes in the matrix as possible. This can save you a lot of time.  For example, say you have a 3 x 3 matrix: (9−1231075−2){\displaystyle {\begin{pmatrix}9&-1&2\\3&1&0\\7&5&-2\end{pmatrix}}}  In order to cancel out the 9 in position a11, we can multiply the second row by -3 and add the result to the first. The new first row is [9 -1 2] + [-9 -3 0] = [0 -4 2]. The new matrix is (0−4231075−2){\displaystyle {\begin{pmatrix}0&-4&2\\3&1&0\\7&5&-2\end{pmatrix}}} Try to use the same trick with columns to turn a12 into a 0 as well. In these special cases, the determinant is simply the product of the elements along the main diagonal, from a11 in the top left to a33 in the lower right. We're still talking about 3x3 matrices, but "triangular" ones have special patterns of nonzero values:  Upper triangular matrix: All the non-zero elements are on or above the main diagonal. Everything below is a zero. Lower triangular matrix: All the non-zero elements are on or below the main diagonal. Diagonal matrix: All the non-zero elements are on the main diagonal. (A subset of the above.)
Summary: Pick the reference with the most zeroes. Use row addition to make the matrix easier. Learn the shortcut for triangular matrices.

In one sentence, describe what the following article is about: fr. Click on the “Product Range” tab. It will be under the “Severe acute malnutrition” section. You can also peruse other products that treat malnutrition. ” Since it is used to treat malnutrition, urgent requests may result in quicker delivery. It is a good idea to have a representative of your organization fill out the quotation request, so that it will look like an official request. Choose whether you can pick it up in France or if you need it delivered. Wait to hear back from Nutriset by email or phone. They will return with pricing and availability for your cause. Depending upon your type of order, credit cards or bank transfers may be necessary.
Summary: Go to the Nutriset website at nutriset. Move your cursor down the left hand column until you find Plumpy’Nut. Find the button on the right that says “Quotation Request. Write your name and the details of your need for Plumpy’Nut. Choose Plumpy’Nut under the “Products Selection” drop down menu. Submit your request. Purchase the products with an international payment.

In one sentence, describe what the following article is about: After difficult events, most people will become defensive and have a hard time trusting people. This is a survival instinct – trusting someone leaves you vulnerable for future pain. Thus, avoiding trust can protect you from harm. Don’t blame yourself for having trust issues. Rather, acknowledge the pain and try to learn from the past. There are negative, mean, and untrustworthy people in the world. Most people, however, are kind and trusting, so don’t let one bad experience or person destroy your ability to trust again. Always remind yourself that there are good people around, too. Oftentimes, when we're hurt, angry, or upset, we react emotionally and make the situation worse. Before deciding that you no longer trust someone, take a few minutes to ask yourself rational questions:  What facts do I know about the incident? What am I guessing or assuming about this person? How did I behave in this situation? Was I trustworthy? According to a Cornell University study, our brains are hardwired to remember betrayal faster than good memories, even if the betrayal is small. Remember your positive interactions with someone as you rebuild trust. There are likely more good memories then you immediately remember. People make mistakes, even people you thought you could trust. What matters most after an argument or incident is how the person responds. Quick or curt apologies often show that the person is not really apologizing. Usually, they simply want you to stop being angry at them. Truly sincere apologies are ones that you do not demand, when someone looks you in the eyes and asks for forgiveness. A sincere apology is the first step to rebuilding trust. Offer your own apologies for wrongdoing when applicable. Just because someone has lost your trust doesn’t mean they are entirely untrustworthy. Instead of returning back to where you started, try trusting someone with smaller, more manageable things. When a friend tells secrets behind your back, you may not confide in them again. That doesn’t mean, however, that you cannot still hang out, work on projects, or talk with each other. Unfortunately, though you can rebuild a lot of trust with someone, there are times when the wounds are too deep to be forgiven. If someone has proven to you that they are not trustworthy don't  feel bad for cutting them out of your life. You cannot open yourself up to be hurt or abused again. Major trauma has a lasting impact on the brain, and you should consider seeing a professional if you cannot build trust with people. A symptom of PTSD is an inability to trust. If you do not want to see a therapist, try out a support group in your area first. Remember that you are not alone with your issues – there are other people like you who are also struggling with trauma.
Summary:
Know that it is normal to have trust issues after trauma. Remember that one person’s actions are not reflective of everyone. Slow down your judgment. Know that people remember betrayal more than positive interactions. Look for sincere, meaningful apologies. Adjust your expectations. Know that you may never fully trust someone who has hurt you. Make a counseling appointment if you still have severe trust issues.