Question
Download Solution PDFsin θ + cosec θ = \(\sqrt{5}\) అయితే, అప్పుడు sin 3 θ + cosec 3 θ = ___________ విలువ.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చిన:
sin θ + cosec θ = √5
ఉపయోగించిన భావన:
x 3 + 1/x 3 = (x + 1/x) 3 - 3(x + 1/x)
గణన:
sin θ + cosec θ = √5
⇒ sin θ + 1/sin θ = √5
ఇప్పుడు,
sin3 θ + 1/sin3 θ = (√5)3 - 3(√5)
⇒ 5 √5 - 3 √5 = 2 √5
∴ అవసరమైన సమాధానం 2 √5.
Last updated on Jun 13, 2025
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