MCQ
$\sec ^2 \theta-\tan ^2 \theta=?$
  • A
    0
  • 1
  • C
    2
  • D
    $\sqrt{2}$

Answer

Correct option: B.
1
1

$1+\tan ^2 \theta=\sec ^2 \theta$

$\because \sec ^2 \theta-\tan ^2 \theta=1 .$

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