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Solve for x : sin2 x + sin2 30° = 1

Solve for x : sin² x + sin² 30° = 1

Sum

sin²x + sin²30° = 1
sin²x = 1 –sin²30°

sin²x = 1 – `(1)/(4)`

sin²x = `(sqrt3)/(2)`

x = 60°

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Trigonometric Equation Problem and Solution

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Chapter 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - TEST YOURSELF [Page 335]

Chapter 21 Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]
TEST YOURSELF | Q 7. (ix) | Page 335

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