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Trigonometric Identities — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsTrigonometric Identities3 Marks
Question
Very-Short and Short-Answer Qustions:
Write the value of $3\cot^2\theta-3\text{cosec}^2\theta.$
✓

Answer

$3\cot^2\theta-3\text{cosec}^2\theta.$
$=3\big(\cot^2\theta-\text{cosec}^2\theta\big)$
$=3\times(-1)$
$=-3$

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