Question
Download Solution PDF\(tan^2\theta + tan^4\theta = 1\) என்றால்:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகொடுக்கப்பட்டது:
tan2 θ + tan4 θ = 1
பயன்படுத்தப்பட்ட கருத்து:
tan2 θ + 1 = sec2 θ
கணக்கீடு:
⇒ tan2 θ + tan4 θ = 1
⇒ tan2 θ (1 + tan2 θ) = 1
⇒ tan2 θ × sec2 θ = 1
⇒ tan2 θ = 1/sec2 θ = cos2 θ
இப்போது சமன்பாட்டில் tan2 θ இன் மதிப்பை பிரதியிட:
⇒ tan2 θ + tan4 θ = 1
⇒ tan2 θ + (tan2)2 θ = 1
⇒ cos2 θ + (cos2)2 θ = 1
⇒ cos2 θ + cos4 θ = 1
∴ சரியான விருப்பம் 2.
Last updated on Jul 9, 2025
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