# post

At first, we sample in the ( is odd) equidistant points around :

where is some step.

Then we interpolate points by polynomial

(1)

Its coefficients are found as a solution of system of linear equations:

(2)

Here are references to existing equations: (1), (2).

Here is reference to non-existing equation (??).

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# Prove sin^2 (x) + cos^2 (x) = 1 without using Pythagoras Theorem

Sin2x + cos2x = sinx sinx + cosx cosx

= cos (x – x) [cos(A - B) = cosA cosB + sinA sinB]

= cos 0

= 1

OR

Sin2x + cos2x = [(1 – cos2x)/2] + [(1 + cos2x)/2]

= [(1 – cos2x + 1 + cos2x) / 2]

= 2/2

= 1

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# Hello world!

Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!

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