4 4 * √2 4 * √2 4 * √ 2 4 * √ 2 * ( √ 5 - 1 )
= = = = =
√ (√5 + 3) √ (6 + 2 * √ 5) √ (1 + √ 5 )² √ 5 + 1 ( √ 5 + 1) * ( √ 5 - 1 )
= √ 2 * ( √ 5 - 1) = √ 10 - √ 2
4/√(√5+3)=(4(√(√5+3)))/〖(√(√5+3))〗^2 =(4(√(√5+3)))/(√5+3)=(4(√(√5+3))(√5-3))/((√5+3)(√5-3))=(4(√(√5+3))(√5-3))/(5-9)=(4(√(√5+3))(√5-3))/(-4)=-(√(√5+3))(√5-3)
4 4 * √2 4 * √2 4 * √ 2 4 * √ 2 * ( √ 5 - 1 )
= = = = =
√ (√5 + 3) √ (6 + 2 * √ 5) √ (1 + √ 5 )² √ 5 + 1 ( √ 5 + 1) * ( √ 5 - 1 )
= √ 2 * ( √ 5 - 1) = √ 10 - √ 2
4/√(√5+3)=(4(√(√5+3)))/〖(√(√5+3))〗^2 =(4(√(√5+3)))/(√5+3)=(4(√(√5+3))(√5-3))/((√5+3)(√5-3))=(4(√(√5+3))(√5-3))/(5-9)=(4(√(√5+3))(√5-3))/(-4)=-(√(√5+3))(√5-3)