Question
Very-Short and Short-Answer Qustions:
Write the value of $3\cot^2\theta-3\text{cosec}^2\theta.$
Write the value of $3\cot^2\theta-3\text{cosec}^2\theta.$
✓
Answer
$3\cot^2\theta-3\text{cosec}^2\theta.$
$=3\big(\cot^2\theta-\text{cosec}^2\theta\big)$
$=3\times(-1)$
$=-3$
$=3\big(\cot^2\theta-\text{cosec}^2\theta\big)$
$=3\times(-1)$
$=-3$
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