Question
Download Solution PDFఒకవేళ sin θ = 2/√5, sec2θ + cot2θ యొక్క విలువను కనుగొనండి?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇవ్వబడినవి:
sin θ = 2/√5
కాన్సెప్ట్:
త్రికోణిమితి ఫంక్షన్ ఉపయోగించి, sec θ మరియు cot θ యొక్క విలువలను లెక్కించండి.
లెక్కింపు:
sin θ = (లంబం)/(దీర్ఘ కర్ణం)
∆ABCలో;
(AC)2 = (AB)2 + (BC)2
⇒ (√5)2 = (2)2 + (BC)2
⇒ 5 = 4 + (BC)2
⇒ (BC)2 = 5 – 4
⇒ (BC)2 = 1
⇒ BC = 1
sec θ = (దీర్ఘ కోణ౦)/భూమి)
⇒ sec θ = √5/1 = √5
cot θ = (భూమి)/(లంబం)
⇒ cot θ = 1/2
(sec θ)2 + (cot θ)2 = (√5)2 + (1/2)2
⇒ 5 + 1/4
⇒ 21/4
∴ sec2θ + cot2θ యొక్క విలువ 21/4.
Last updated on Jun 13, 2025
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