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0. Functions - 2! 2부
0. Functions / Combining Functions / 문제 1
문제 1

The graphs of u(x)u\(\left\)(x\(\right\)) and v(x)v\(\left\)(x\(\right\)) are shown in the following image.

Find the value of u(u(9))u\(\left\)(u\(\left\)(9\(\right\))\(\right\)).