Question
Download Solution PDFsinθ के पदों में sin4θ + cos4θ को कैसे लिखा जा सकता है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
sin4θ + cos4θ
प्रयुक्त अवधारणा:
cos2θ = 1 - sin2θ
गणना:
sin4θ + cos4θ
⇒ sin4θ + (cos2θ)2
⇒ sin4θ + (1 - sin2θ)2
⇒ sin4θ + 1 + sin4θ - 2sin2θ
⇒ 2sin4θ + 1 - 2sin2θ
⇒ 2sin4θ - 2sin2θ + 1
∴ अभीष्ट उत्तर 2sin4θ - 2sin2θ + 1 है।
Last updated on Jul 17, 2025
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