Question

Write the value of cosec² 10° – cot² 10°​

Answer 1

${cosec}^{2} 10 - {cot}^{2} 10 \\ = \frac{1 - {cos}^{2}10 }{ {sin}^{2} 10} \\ = \frac{ {sin}^{2}10 }{ {sin}^{2}10 } = 1$

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