Question
Download Solution PDFकिसी भी न्यून कोण θ के लिए, sin θ + sin2 θ = 1 है, तो cos2 θ + cos4 θ का मान क्या है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFगणना:
sinθ + sin2θ = 1
sinθ = 1 - sin2θ
cos2 θ + cos4 θ = cos2θ + (cos2θ)2
⇒ cos2θ + (1 - sin2θ)2 = 1
⇒ cos2θ + sinθ2 = 1
∴ सही उत्तर 1 है।
Last updated on Jul 10, 2025
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