Help me!!!!!!!!!!!!!!!!!!!!!!!!
1 answer:
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Answer:
Therefore the angle of intersection is
Step-by-step explanation:
Angle at the intersection point of two carve is the angle of the tangents at that point.
Given,
and
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)]
[ putting t= 0]
Again,
The tangent at (0,0,0) is
[ putting t= 0]
If θ is angle between tangent, then
Therefore the angle of intersection is .
Choice A is the answer which is the point (1,-1)
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How I got this answer:
Plug each point into the inequality. If you get a true statement after simplifying, then that point is in the solution set and therefore a solution. Otherwise, it's not a solution.
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checking choice A
plug in (x,y) = (1,-1)
This is true because -3 is equal to itself. So this is the answer.
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checking choice B
plug in (x,y) = (2,4)
This is false because 0 is not to the left of -3, nor is 0 equal to -3. We can cross this off the list.
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checking choice C
plug in (x,y) = (-2,3)
This is false because 7 is not to the left of -3, nor is 7 equal to -3. We can cross this off the list.
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checking choice D
plug in (x,y) = (3,4)
This is false because -2 is not to the left of -3, nor is -2 equal to -3. We can cross this off the list.