ACCORDING TO THE PASSAGE, MATHEMATICAL OPERATIONS INCLUDE

38. - DE LUYEN THI +DAP AN
DE LUYEN THI +DAP AN

38. According to the passage, mathematical operations include: _______.

a. to add, subtract, multiply and divide

b. to square, cube, or raise to any other power

c. to take a square, cube, or any other root, and to find a ratio or proportion between pairs of numbers or

a series of numbers

d. All are correct