Current location - Training Enrollment Network - Mathematics courses - A math problem in summer homework of junior high school and senior high school.
A math problem in summer homework of junior high school and senior high school.
Solution: simplify the values of x and y: x=3-2√2, y=3+2√2.

∴x？ +y？ =34，xy= 1，x+y=6

x？ +y？ =(x+y)(x？ -xy+y？ )=6×33= 198

x^4+y^4=(x？ +y？ )? -2x？ y？ =34? -2= 1 154

The original formula =198/1154 = 99/577.

Related articles
  • All Formulas of Mathematical Sales Problem
  • Two ways to find the true questions of mathematics for postgraduate entrance examination over the years
  • What light does red light and green light mix into?
  • Qufu normal university
  • Which is better, Nanjing University or University of Science and Technology of China?
  • What song is suitable for listening to when writing math homework?
  • Mathematics in the sixth grade of primary school: answers to problems of cylinders and cones
  • Tian Haiyan Mathematics
  • Reflection on the final grade of the first volume of eighth grade mathematics 300
  • The answer to the second volume of mathematics in the third grade of primary school students.

    • copyright 2024 Training Enrollment Network All rights reserved