Math, asked by samikshashishupal, 7 months ago

the square root of 346.7 in long division

Answers

Answered by ABHIRAMc
0

Answer:

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Answered by sharmaragini1102
0

Step-by-step explanation:

Step 1:

Divide the number (346.7) by 2 to get the first guess for the square root .

First guess = 346.7/2 = 173.35.

Step 2:

Divide 346.7 by the previous result. d = 346.7/173.35 = 2.

Average this value (d) with that of step 1: (2 + 173.35)/2 = 87.675 (new guess).

Error = new guess - previous value = 173.35 - 87.675 = 85.675.

85.675 > 0.001. As error > accuracy, we repeat this step again.

Step 3:

Divide 346.7 by the previous result. d = 346.7/87.675 = 3.9543769604.

Average this value (d) with that of step 2: (3.9543769604 + 87.675)/2 = 45.8146884802 (new guess).

Error = new guess - previous value = 87.675 - 45.8146884802 = 41.8603115198.

41.8603115198 > 0.001. As error > accuracy, we repeat this step again.

Step 4:

Divide 346.7 by the previous result. d = 346.7/45.8146884802 = 7.5674420475.

Average this value (d) with that of step 3: (7.5674420475 + 45.8146884802)/2 = 26.6910652639 (new guess).

Error = new guess - previous value = 45.8146884802 - 26.6910652639 = 19.1236232163.

19.1236232163 > 0.001. As error > accuracy, we repeat this step again.

Step 5:

Divide 346.7 by the previous result. d = 346.7/26.6910652639 = 12.9893654139.

Average this value (d) with that of step 4: (12.9893654139 + 26.6910652639)/2 = 19.8402153389 (new guess).

Error = new guess - previous value = 26.6910652639 - 19.8402153389 = 6.850849925.

6.850849925 > 0.001. As error > accuracy, we repeat this step again.

Step 6:

Divide 346.7 by the previous result. d = 346.7/19.8402153389 = 17.4746087216.

Average this value (d) with that of step 5: (17.4746087216 + 19.8402153389)/2 = 18.6574120303 (new guess).

Error = new guess - previous value = 19.8402153389 - 18.6574120303 = 1.1828033086.

1.1828033086 > 0.001. As error > accuracy, we repeat this step again.

Step 7:

Divide 346.7 by the previous result. d = 346.7/18.6574120303 = 18.5824271575.

Average this value (d) with that of step 6: (18.5824271575 + 18.6574120303)/2 = 18.6199195939 (new guess).

Error = new guess - previous value = 18.6574120303 - 18.6199195939 = 0.0374924364.

0.0374924364 > 0.001. As error > accuracy, we repeat this step again.

Step 8:

Divide 346.7 by the previous result. d = 346.7/18.6199195939 = 18.6198441004.

Average this value (d) with that of step 7: (18.6198441004 + 18.6199195939)/2 = 18.6198818472 (new guess).

Error = new guess - previous value = 18.6199195939 - 18.6198818472 = 0.0000377467.

0.0000377467 <= 0.001. As error <= accuracy, we stop the iterations and use 18.6198818472 as the square root.

So, we can say that the square root of 346.7 is 18.6198 with an error smaller than 0.001 (in fact the error is 0.0000377467). this means that the first 4 decimal places are correct. Just to compare, the returned value by using the javascript function 'Math.sqrt(346.7)' is 18.619881847100963.

Note: There are other ways to calculate square roots. This is only one of them.

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