Find the cube root of 0.216 in lowest terms...
Answers
Answered by
0
Step-by-step explanation:
Let θ is the angle between the tangents
Let a line y=mx+c is tangent to
the ellipse
25
x 2+ 16y 2 =1
then c= 25m 2+16
y=mx+
25m 2+16
It passes through (6, 5)
( 5 −6m) 2=(25m 2 +16)
36m 2+5−12 root=25m 2+16
11m 2−12 root5m−11=0
m 1m 2= 11/11 =−1
Tangents are perpendicular
θ=90 ∘
Answered by
0
Answer:
One real cube root:
3
√
0.216
=
0.6
Three complex cube roots:
0.6
,
0.3
+
0.3
√
3
i
and
0.3
−
0.3
√
3
i
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