ahmed abdo
04 - 12 - 08, 09:55 AM
زى ما وعدتكم بعض حللول الشيت والجزء المتبقى سوف اعرضه خلال ايام وارجو ان تبدو ارائكم بشان الحلول
Q1:
a(x-x.)+b(y-y.+c(z-z.)=0
so: a=5 b=2 c=3
so:5(x-3)+2(y-1)+3(z+1)=0
finally: 5x+2y+3z-14=0
-----------------------------------------------------------------------------
Q2:
as the center of the circle is (4,0*)d
(r=2a cos (0
note:as(0)is the angle theta not zero
finally:
r =8cos 0
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Q4:
we can detremine (r)as
r^=x^+z^ ( and ^is square
and tan0=y/x as0 is theta angle
so: r =2
and:0 =315* also
we can put the point in cylindrical coordinate:
as(2, 315* ,1)and the other point like that
Q1:
a(x-x.)+b(y-y.+c(z-z.)=0
so: a=5 b=2 c=3
so:5(x-3)+2(y-1)+3(z+1)=0
finally: 5x+2y+3z-14=0
-----------------------------------------------------------------------------
Q2:
as the center of the circle is (4,0*)d
(r=2a cos (0
note:as(0)is the angle theta not zero
finally:
r =8cos 0
-----------------------------------------------------------------------------
Q4:
we can detremine (r)as
r^=x^+z^ ( and ^is square
and tan0=y/x as0 is theta angle
so: r =2
and:0 =315* also
we can put the point in cylindrical coordinate:
as(2, 315* ,1)and the other point like that