हिंदी

Prove that: cosec2 45°  - cot2 45°  = 1

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प्रश्न

Prove that:

cosec2 45°  - cot2 45°  = 1

योग
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उत्तर

LHS= cosec2 45° - cot2 45°

= `(sqrt2)^2 –1^2 = 2  – 1 = 1 = RHS`

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अध्याय 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - EXERCISE 21 (C) [पृष्ठ ३२२]

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सेलिना Concise Mathematics [English] Class 9 ICSE
अध्याय 21 Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]
EXERCISE 21 (C) | Q 4. (iii) | पृष्ठ ३२२
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