find square root of 441 by successive subtraction/repeated subtraction
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21
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Step-by-step explanation:
441 - 1 = 440
440 - 3 = 437
437 - 5 = 432
432 - 7 = 425
435 - 9 = 426
426 - 11 = 415
415 - 13 = 402
402 - 15 = 387
387 - 17 = 370
370 - 19 = 351
351 - 21 = 330
330 - 23 = 307
307 - 25 = 282
282 - 27 = 255
255 - 29 = 226
226 - 31 = 195
195 - 33 = 162
162 - 35 = 127
127 - 37 = 90
80 - 39 = 41
41 - 41 = 0
it takes 21 steps to reach 0 by successive subtraction
Therefore , square root of 441 is 21
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