Tardigrade
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Tardigrade
Question
Mathematics
The gradient of the tangent line at the point (a cos α, a sin α) to the circle x2+y2=a2, is -
Q. The gradient of the tangent line at the point
(
a
cos
α
,
a
sin
α
)
to the circle
x
2
+
y
2
=
a
2
, is -
819
223
Conic Sections
Report Error
A
tan
(
π
−
α
)
B
tan
α
C
cot
α
D
−
cot
α
Solution:
Correct answer is (d)
−
cot
α