Determine the random coefficient (or subtraction) of each of the following expectations relative to x (or t or u)
u4-3u2-4 / u-2
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Answer:
tan30=
CD
AC
=>
CD
AC
=
3
1
=>LetAC=x,CD=x
3
AE=AC+CE=x+25
sin45=
2
1
=
AB
AE
=>
75
x+25
=
2
1
=> x=
2
75
2
−50
=27.85m
=> AC=27.85m,CD=48.18m
AD=
AC
2
+CD
2
=55.67m = lenght of string of second boy
solution
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