Recent questions in Mathematics

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What are the circle theorems

what r the circle theorems
12/03/2017

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By using the mathod of triangle

U+V+W=23U+3V-W=6U-V+W=1
05/03/2017

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Linear Algebra: Vectors

Show that |a+b|^2 + |a-b|^2 = 2|a|^2 +|b|^2
05/03/2017

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Linear Algebra: Vectors

Show that |a+b|^2 + |a-b|^2 = 2|a|^2 +|b|^2
05/03/2017

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What is the most beautiful theorem proof, and why?

For instance- the Pigeon hole principle. Simple and elegant :)
16/12/2016

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Parabola given by the function f(x) = x^2

Let (r, r^2) be an arbitrary point on the parabola f(x) = x^2. Show that the equation of the tangent line to the graph of f(x) at (r, r^2) is given by y = 2rx − r^2.
18/02/2016

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Series and sequences

The first ,second and fifth terms of a linear sequence are three consecutive terms o an exponential sequence .if the first term of the linear sequence is 7 find its a)The common difference of ...
31/10/2015

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Gradient for functions in two variables

Find ∇f(1, 1) for the function in two variables f(x, y) = x^2 + y^2.
20/10/2015

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Given nonzero vectors ⃗u, ⃗v, and ⃗w, use dot product and cross product notation, as appropriate, to describe the following

The vector projection of ⃗u onto ⃗vA vector orthogonal to ⃗u and ⃗vA vector orthogonal to ⃗u × ⃗v and ⃗wA vector orthogonal to ⃗u × ⃗v and ⃗u × ⃗wA vector orthogonal to ...
14/10/2015