यदि \( 3 \tan ^{-1} x+\cot ^{-1} x=\pi \), तो \( x \) बराबर है (A) 0 (B) 1 (C) \( -1 \) (D) \( \...
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यदि \( 3 \tan ^{-1} x+\cot ^{-1} x=\pi \), तो \( x \) बराबर है
(A) 0
(B) 1
(C) \( -1 \)
(D) \( \frac{1}{2} \)
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