\( 9 \sec ^{2} \theta-9 \tan ^{2} \theta \) बराबर है (A) 1 (B) 9 (C) 8 (D) 0
\( 9 \sec ^{2} \theta-9 \tan ^{2} \theta \) बराबर है
(A) 1
(B) 9
(C) 8
(D) 0
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