Question
Download Solution PDFAnswer (Detailed Solution Below)
Detailed Solution
Download Solution PDFঅনুসৃত সূত্র:
1 - sin2 θ = cos2 θ
Sec θ × cos θ = 1
গণনা:
Sec θ × √{1 - sin2 θ}
⇒ Sec θ × √{cos2 θ}
⇒ Sec θ × cos θ = 1
∴ সঠিক উত্তর হল 1
Last updated on Jul 12, 2025
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