log(根号2+1)1/根号下3+2倍根号2=x 求x_数学解答

log(根号2+1)1/根号下3+2倍根号2=x 求x

人气：303 ℃　时间：2020-05-08 19:28:42

解答

x=log(√2+1)[1/√(3+2√2)]
=-log(√2+1)[√(3+2√2)]
=-log(√2+1)(√(√2+1)^2)
=-log(√2+1)(√2+1)
=-1