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Inverse Trigonometric Function
Inverse Trigonometric Function
Hard
Question
If x
2
+ y
2
+ z
2
= r
2
, then tan
-1
+ tan
-1
+ tan
-1
=
Options
A.
π / 4
B.
π / 2
C.
0
D.
None of these
Solution
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Inverse Trigonometric Function
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