Find the following square roots, using ‘Prime Factors': 1. (i) 784 (ii) 7056 (iii) 20 2. (i) 17424 (ii) 36864 13 (iii) 3 81 729 (iii) 256 3. (1) 110.25 (ii) 92.16
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441
prime factorization:
441=3×3×7×7
441=3×3×7×7=3×7
=21
(b) 784=2×2×2×2×7×7
784=2×2×2×2×7×7
784=2×2×7
=28
(c) 4096=2×2×2×2×2×2×2×2×2×2×2×2
4096=2×2×2×2×2×2×2×2×2×2×2×2
4096=2×2×2×2×2×2
=2×2
=64
(D) 7056=2×2×2×2×3×3×
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