Today Merle received this year’s Breakthrough Prize in Mathematics for his achievements. The prize comes with a $3-million ...
Heisenberg’s Uncertainty Principle states that there are limits to how precisely certain pairs of physical properties, like ...
From fractions and decimals to distance and time, the humble-but-versatile number line can deepen students’ understanding of ...
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Interior designers reveal how geometry and mathematical principles like the golden ratio are the secret to beautiful home ...
Grades offer a snapshot of performance, but they rarely capture the full picture of a student’s understanding. Hidden gaps, ...
In his doctoral thesis, Michael Roop develops numerical methods that allow finding physically reliable approximate solutions ...
The painstaking process of formalization to verify proofs is starting to surge thanks to AI. That could radically change the ...
You can track the start of spring and the phases of the moon—or you can turn to a formula by mathematician Carl Friedrich ...
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Evaluate using sum and difference formulas
I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.
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Evaluate using the sum and difference formulas
In this video, I will show you how to evaluate an angle in degrees using the sum formula of cosine. We will need to use the formula because we cannot evaluate using the unit circle. We will then ...
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