Question

find the square root of 999999² without multiplication​

Answer 1

Answer:

999.9944

Step-by-step explanation:

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Answer 2

Answer:

999999999999

Step-by-step explanation:

we know that 999999=1000000-1

so 999999²=999999×999999

                  =(1000000-1)×(1000000-1)

                  =1000000×(1000000-1)-1×(1000000-1)

                  =1000000×1000000-(1000000×-1)-1×1000000-(1×1)

                  =999999999999