मराठी

Find the value of: sin2 30° + cos2 30°+ cot2 45°

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प्रश्न

find the value of: sin2 30° + cos2 30°+ cot2 45°

बेरीज
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उत्तर

sin2 30° + cos230° + cot2 45° = `(1/2)^2 + (sqrt3/2)^2 + 1^2`

= `(1)/(4) + (3)/(4) + 1`

= 2

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पाठ 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
पाठ 21 Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]
EXERCISE 21 (C) | Q 2. (v) | पृष्ठ ३२२
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