TN 10TH MATHS EM CH-2 EXAMPLE 2.3
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Example 2.3 Show that the square of an odd integer is of the form 4q+1 , for some integer q . Solution: Let x be any odd integer. An even integer x=2k let Odd integer x=2k+1 GIVEN THAT The square of an odd integer x² = (2k+1)² = (2k)²+2(2k)(1)+ 1² ...