मराठी

Solve for x : cos (2x - 30°) = 0

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प्रश्न

Solve for x : cos (2x - 30°) = 0

बेरीज
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उत्तर

cos (2x – 30°) = 0
cos ( 2x – 30°) = cos 90°
2x – 30° = 90°
2x = 120°
x = 60°

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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. (iv) | पृष्ठ ३३५
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