Which spreadsheet function will display 6 as the output in the following formula

= (36)

SQRT (number) is the function that will display the required answer of your question.

=SQRT (36) that will display 6

there are some other function to perform same operation.

the POWER () function, but here you need to put 1/2 as power to get the square root.

=POWER (Cell number, 1/2)

=POWER (G7,1/2)

Auto Complete is your answer.