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Q.

The square root of Question Imageis


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a

1

b

2

c

3

d

4 

answer is B.

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Detailed Solution

Concept- Finding the cube and square of 0.75 will allow us to enter it into the equation, calculate one precise value for the given expression, and then take the square root of that value. This will make our calculations simpler and easier. Next, perform the necessary addition, subtraction, and division. Finally, take the square root to arrive at the solution.
We have to find
 Question ImageFirst we simplify the brackets,
Question ImageNow, on further simplification we get,
Question ImageNow on adding we get,
Question ImageNow on taking positive root we get,
Question ImageHence, the correct answer is option 2) 2
 
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