find the value of: cos2 60° + sin2 30°

find the value of: cos² 60° + sin² 30°

Sum

cos² 60° + sin² 30° = `(1/2)^2 + (1/2)^2 = (1)/(4) + (1)/(4) = (1)/(2)`

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Chapter 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - EXERCISE 21 (C) [Page 322]

Chapter 21 Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]
EXERCISE 21 (C) | Q 2. (iii) | Page 322