मराठी

If sin 3A = 1 and 0 < A < 90°, find sin A

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प्रश्न

If sin 3A = 1 and 0 < A < 90°, find sin A

बेरीज
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उत्तर

sin 3A = 1 
sin 3A = sin90°
3A = 90°
A = 30°

sin A = sin30°
sin A = `(1)/(2)`

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Trigonometric Equation Problem and Solution
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पाठ 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - EXERCISE 21 (E) [पृष्ठ ३२८]

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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 (E) | Q 7. (i) | पृष्ठ ३२८
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