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Real Numbers

Use Euclid’s division algorithm to find the HCF of 441, 567, 693.

07/11/2024

Mathematics

10th

Real Numbers

Prove that if x and y are both odd positive integers, then x2 + y2 is even but not divisible by 4.

07/11/2024

Mathematics

10th

Real Numbers

If n is an odd integer, then show that n2 – 1 is divisible by 8.

07/11/2024

Mathematics

10th

Real Numbers

Show that the square of any odd integer is of the form 4q + 1, for some integer q.

07/11/2024

Mathematics

10th

Real Numbers

Show  that  the  square  of  any  positive  integer  cannot  be  of  the  form  6m  +  2  or 6m + 5 for any integer m.

07/11/2024

Mathematics

10th

Real Numbers

Show  that  the  square  of  any  positive  integer  cannot  be  of  the  form  5q  +  2  or 5q + 3 for any integer q.

07/11/2024

Mathematics

10th

Real Numbers

Show that cube of any positive integer is of the form 4m, 4m + 1 or 4m + 3, for some integer m.

07/11/2024

Mathematics

10th

Real Numbers

Show that the square of any positive integer is either of the form 4q or 4q + 1 for some integer q.

07/11/2024

Mathematics

10th

Real Numbers

Show that the square of an odd positive integer is of the form 8m + 1, for some whole number m.

07/11/2024

Mathematics

10th

Real Numbers

Using Euclid’s division algorithm, find which of the following pairs of numbers are co-prime:

(i) 231, 396         (ii) 847, 2160

07/11/2024

Mathematics

10th