Find 10^(5^101) (mod 21).
note: 10^(5^101) is not 10^(501)

We have , where is the Carmichael function. So we have

The powers of 5 modulo 6 follow a periodic pattern

and so on, with odd powers of 5 equivalent to 5 modulo 6. So

The rest is easy to deal with. We have

and so the answer is 19.

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

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step-by-step explanation: