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emily0259
28.02.2020 •
Mathematics
The curves r1(t) = 2t, t2, t4 and r2(t) = sin t, sin 5t, 2t intersect at the origin. Find their angle of intersection, θ, correct to the nearest degree.
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Ответ:
Therefore the angle of intersection is![\theta =79.48^\circ](/tpl/images/0528/2993/ed792.png)
Step-by-step explanation:
Angle at the intersection point of two carve is the angle of the tangents at that point.
Given,
and![r_2(t)=(sin t , sin5t, 2t)](/tpl/images/0528/2993/3629d.png)
To find the tangent of a carve , we have to differentiate the carve.
The tangent at (0,0,0) is [ since the intersection point is (0,0,0)]
Again,
The tangent at (0,0,0) is
If θ is angle between tangent, then
Therefore the angle of intersection is
.
Ответ: