मराठी

Solve for x : 2 cos 3x - 1 = 0

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प्रश्न

Solve for x : 2 cos 3x - 1 = 0

बेरीज
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उत्तर

2 cos 3x – 1 = 0
cos 3x = `(1)/(2)`
3x = 60°
x = 20°

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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] - TEST YOURSELF [पृष्ठ ३३५]

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सेलिना Concise Mathematics [English] Class 9 ICSE
पाठ 21 Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]
TEST YOURSELF | Q 7. (i) | पृष्ठ ३३५
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