Simple knowledge is the most important core of Education 4.0 it same as Albert Einstein quotes: everything should be made as simple as possible but not simpler If you can't explain it simply you don't understand it well enough We cannot solve our problems with the same thinking we used when we created them. Using Peter Chew Rule for Solution of Triangle to solve the same problem is a simple direct and accurate method to compare current methods. The Peter Chew Rule is the same as the sine rule bo
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