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Use de Moivre’s theorem to show that, (sin(x))^5 = A sin(5x) + Bsin(3x) + Csin(x), where A , B and C are constants to be found.

State de Moivre's theorem. Use n =5 and solve. I'll show this on the whiteboard.
RM
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When do you use a capital letter in German?

In German, capital letters are only used for nouns and names and after full stops. You can recognize nouns by spotting articles in front of them (e.g der, die, das / ein, eine). It is important to remember t...
JM
Answered by Josephine M. • German tutor
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When do you use “a”, “as” or “à” in French?

“a” is the verb “avoir” (to have) conjugated in the present tense, third person singular (Il/elle a = he/she has). e.g : Il a du chocolat à He HAS chocolate. “as” is similarly the verb “avoir” but with the s...
JM
Answered by Josephine M. • French tutor
21317 Views

Find the equation of a Circle with centre (2,9) and radius 4.

In the form (x-x1)^2+(y-y1)^2=r^2 Hence equation is: (x-2)^2+(y-9)^2=16
SD
Answered by Salman D. • Maths tutor
4483 Views

What is the process of phagocytosis

Phagocytosis is the non-specific engulfing and destroying of a pathogen by white blood cells known as phagocytes. On detecting foreign chemicals produced by a pathogen known as cytokines, the phagocyte will ...
KR
Answered by Katie R. • Biology tutor
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