Question

1/根号2ln根号2+1/根号2-1

关于化简(1/ 根号2)*[ln(根号2+1)/(根号2-1)]
这个化简的结果是=（根号2）*ln（根号2+1）.请问过程怎么来的?急用啊

Answer 1

1/√2*ln(√2+1/√2-1)
=√2/2* ln(√2+1)∧2
=√2/2*2 ln(√2+1)
=√2ln(√2+1)