Question

直角三角形,2个直角边为 a=2倍根号3+1 b=2倍根号3-1 求c斜边,

Answer 1

c^2=a^2+b^2

=(2√3+1)^2+(2√3-1)^2

=12+4√3+1+12-4√3+1

=26

c=√26