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Question
Identify the digit in the units place in the square root of 15876.
Identify the digit in the units place in the square root of 15876.
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Solution
The correct option is D 6
We will use long division methodIn this, first group the numbers into two starting from unit place, these groups are called periods.use the largest number whose square is equal or less than the first period numberSubtract the product of divisor and quotient from the first period and bring down the second period to the right of remainder. This will become new divident.In this way we can find out the square root .√15876=126Hence, Unit digit is 6.Hence, Option B is correct.
We will use long division method
In this, first group the numbers into two starting from unit place, these groups are called periods.
use the largest number whose square is equal or less than the first period number
Subtract the product of divisor and quotient from the first period and bring down the second period to the right of remainder. This will become new divident.
In this way we can find out the square root .
√15876=126
Hence, Unit digit is 6.
Hence, Option B is correct.
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