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58. Find the value of (sin²33° + sin²57°) [Delhi 2019]

Harshit Singh , 4 Years ago
Grade 12th pass
anser 1 Answers
Pawan Prajapati

Last Activity: 4 Years ago

Answer: Explaination: sin²33° + sin²57° ⇒ sin²33° + sin²(90° – 33°) ⇒ sin²33° + cos²33° [Using sin(90° – θ) = cos θ] ⇒ 1 [Using sin²θ + cos² θ=1]

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