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Always, always remember to make every sentence refer, in some way, to the topic. Never go off on a tangent. [...]
Posted by Helena
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As a quick suggestion for conic sections - if you can complete the square for an equation in general form...... I w [...]
Posted by Joe Perlman
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When trying to find the right exposure in a complex scene try spot metering the sky. If the sky is blue then meter [...]
Posted by Thomas Hall
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So your child is taking a math class and has hit a wall. Frustration rears up and blocks them from working th [...]
Posted by Terry VanNoy
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