The variance of the random variable aX is equal to a times the variance of X.

Q: Prove that AAB = (AU B) - (An B),

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Q: Prove. Z40 (Rez) ² +Z1 ? 0

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Q: Show that Sn is solvable when n ≤ 4.

A: We see that S1  is the trivial group {e} and it is solvable.   We see that , |S2| = 2 so it is…

Q: Show that if a < c< b, then fave (a, b) = () fave l(a, c) + C - a | favg [c, b]

A: Solution...

Q: you have to show ur work

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Q: Differentiate. f(x) X x+ C X

A: Topic -Derivative of a function We are given, f(x)=xx+cxwe know thatddxuv=vu'-uv'v2    [ u and v are…

Q: this os not right

A:

Q: What is t

A: Note: After seeing the previous explanation, we observe that the student has some doubts  related…

Q: is it proveable with only the theorem given?

A: Is it provable with only the theorem given?The notations and symbols in the given theorem are used…

Q: Show that 1 -2 = R³. span 3 1

A: In R^3 if three vectors are linearly independent then they span the whole space R^3.

Q: What is the value of

A: We know, i=-1

Q: Can you write this out?

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Q: What is the symmetric property

A: The below explanation is the answer.

Q: first prove that ()" <n! < ()" forn2 6.

A: We will prove                        n3n≤n!≤n3n for n≥6.

Q: Let a = (5,-2, 9). Find ||10||

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Q: 6) Show that=1

A: