Question

23°11′2〃÷{(53的2次方-52的2次方)-(51的2次方-50的2次方)+5】÷3}

555°11′15〃÷【6-(-10分之7÷7+/10分之1-1/)】 现在就要我给分！

Answer 1

23°11′2〃÷{[(53^2-52^2)-(51^2-50^2)+5]÷3}
=23°11′2〃÷{[(53-52)(53+52)-(51-50)(51+50)+5]÷3}
=23°11′2〃÷[(105-101+5)÷3]
=23°11′2〃÷(9÷3)
=23°11′2〃÷3
=21°120'+11′2〃÷3
=21°131′2〃÷3
=21°129′120"+2"÷3
=21°129′122"÷3
=7°43′40.67"
555°11′15〃÷[6-(-7/10÷7+l1/10-1l)]
=555°11′15〃÷[6-(-1/10+9/10)]
=555°11′15〃÷(26/5)
=(2775°55′75〃)/26
=(2756°1170′1575〃)/26
=106°45′60.58〃