Xiao Ming saw a weather station on the mountain in front of him at A, with an elevation of 15 degrees. When going straight for 4 kilometers, Xiao Ming saw that the elevation of the weather station was 30 degrees. Can you find it? Let Xiaoming's height be h 1 and the height of the weather station be h2.

[4000+(H2-h 1)/tan 30]* tan 15 = H2-h 1

= = & gt4000+(h2-h 1)/3^( 1/2)=(h2-h 1)/tan 15

= = & gt4000 =(H2-h 1)*[ 1/tan 15- 1/3^( 1/2)]H2-h 1 = 4000/(3.732050808- 1.732050808)

H2-h2 is about 2000

If Xiao Ming's height is excluded, the height of the weather station is about 2000 meters, otherwise it should be about 2002 meters.