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Find an expression in terms of powers of cos(x) for cos(5x)

De Moivre's theorem states that e ix = cos(x) + isin(x) or that e i5x = cos(5x)+ isin(5x). If the real components of both sides of this equation is taken we can see that : cos(5x) = Re[e i5x ] where Re means...
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Answered by Arnav A. Maths tutor
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What is the difference between Reverse osmosis and osmosis?

Osmosis is a natural phenomenon where the water molecules will seep through the semipermeable membrane separating 2 compartments, from an area of lower concentration to the area of higher concentration until...
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How do I choose the essay I want to do for the LNAT?

So, you get an option of 5 essays when you do the LNAT. The first thing to do is to skim all of them. Immediately, you'll be able to discount one or two - maybe they sound boring, maybe you've never heard ab...
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Answered by Ruchika G. LNAT tutor
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How is energy generated from carbohydrates?

The breakdown of carbohydrates from foodstuffs produces mono and disaccharides. These sugars are converted into glucose to be respired for energy generation. Respiration catabolises (breaks down) glucose, to...
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Answered by Lizzie E. Biology tutor
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Name one thing that differentiates plant cells from animal cells.

Any from:Plant cells have a cell wall and animal cells don't.Plant cells contain chloroplasts and animal cells don't.Plant cells usually have one large central vacuole whereas animal cells can have many smal...
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Answered by Fatimah R. Biology tutor
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