If 2 + 3i is a zero, then 2 - 3i is also a zero
x(x - 2 - 3i)(x - 2 + 3i)
= x(x² - 2x + 3ix - 2x + 4 - 6i - 3ix + 6i - 9i²
= x(x² - 4x + 4 + 9)
= x(x² - 4x + 13)
= x³ - 4x² + 13x
ㅈㅇㅊㅌㅉ헐퓨ㅠㄹ류ㅝㅓㅗㅇ홀푸ㅜㅠㅠㅠㅍㅈ됴ㅕㅏㅠㄴㄴ흍ㄴ헢ㄴ러ㅠㅊㅁ풒ㅏㅏㅜㅡㅡㅡㅡㅜㅊㄴㄸㅎㅎㄹ호ㅗㅎㅎㅎㅎㅎ호ㅗㅗㅗㅎㅇ호ㅓㅓㅎ호ㅓㅓㅗㅗㄱ허ㅓㄴㄹ허도ㅓ
Answer:
x=60
Step-by-step explanation:
50+90+100=240
360-240=120
x=60
Angle to the top of the building or base of the tower = 36 degrees
Angle to the top of the radio tower on the building = 46 degrees
Distance from the base at which the surveyor is standing = 67 meters
Let us assume the distance of the base of the tower from the surveyor = x1
Let us assume the distance of the top of the tower from the surveyor = x2
Then
tan(36) = x1/67
x1 = 67 tan(36)
and
tan(46) - x2/67
x2 = 67 tan(46)
Now
x2 - x1 = 67 tan(46) - 67 tan(36)
= 20.702
= 20.7 m
From the above deduction, it can be concluded that the correct option among all the options that are given in the question is the second option or option "b".