Answer:
1.1i is the answer.
Step-by-step explanation:
We know that for any real number a x a = a square
Even if a is negative, the square is positive because of the rule - when multiplied by - becomes +.
Here we have a square root of a negative number. So this is an imaginary number only since any real number will have only positive square.
Thus √-1.21 is an imaginary number
Let i represent √-1
Then we have √-1.21 = √-1(√1.21)
= 1.1 i
Thus real root is 1.1 multiplied by imaginary number i.
