Analysis for Quiz 12: Brain Power Enrichment Quiz (I)
Question 1: If $a\gt b$ and $c\gt d$ are true, then we can say $a+c\gt b+d$ is always true.
A. Correct.
B. Incorrect.
Answer:
Yes, that is always correct, regardless if $a,\,b,\,c,\,d$ are negative or positive real number.
Take for example, we have:
Showing posts with label concave up. Show all posts
Showing posts with label concave up. Show all posts
Prove 16<1/√(1)+1/√(2)+1/√(3)+1/√(4)+...1/√(79)+1/√(80)< 17
Show that [MATH]16 < \sum_{k=1}^{80}\dfrac{1}{\sqrt{k}}< 17[/MATH].
It goes without saying that there's more than one way to skin any given math problem. Exposing students with intriguing math problem can actually instill a genuine interest in creative problem-solving from an early age.
It goes without saying that there's more than one way to skin any given math problem. Exposing students with intriguing math problem can actually instill a genuine interest in creative problem-solving from an early age.
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