Cocenterexaumple. To shaw that of form Ux, PW) is F, find o counterexauple, that is, on examp. K for which Pc)' is F. Ex. Show that the statenent `every poitie a a statement ne need only intger con be written of three întegers" o F. Oo, '4, 2일 4, 32-9 sum of squares %3D Counterex. 7 can't be written as sm of three int.

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Q: 0 1 2 4 5 Distance (m) ONASHONIST

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Q: 2) Find tue indefinite inpegrel W V 2w +5 dw

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