From this to that

[RobertB1985]

In a calculus test question, they give this as a step to the solution.
2x (3/sqrt10)x(1/sqrt10)=3/5

Please explain how they arrive at 3/5.

Thank you,

 

[Deleted member 4993]

2x (3/sqrt10)x(1/sqrt10)=3/5

Have you worked it out (simplified step-by-step) with pencil and paper.

If yes please share your work - and tell us exactly where did you get stuck?

If not - please do it now and tell us where you are stuck.

 

[jonah2.0]

Beer soaked query follows.

In a calculus test question, they give this as a step to the solution.
2x (3/sqrt10)x(1/sqrt10)=3/5

Please explain how they arrive at 3/5.

Thank you,

[math]2\cdot\frac{3}{\sqrt{10}}\cdot\frac{1}{\sqrt{10}}=\frac{(2)(3)(1)}{\left(\sqrt{10}\right)\left(\sqrt{10}\right) }=\frac{?}{?} [/math]

 

[mmm4444bot]

2x (3/sqrt10)x(1/sqrt10)=3/5

Tip: Use an asterisk to show multiplication, when typing math expressions. (Letter x means something else now.)

2 * (3/sqrt[10]) * (1/sqrt[10]) = 3/5

Are you looking at a calculus placement test?

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