Question
Download Solution PDFx = (sec θ - cos θ) (cot θ + tan θ) കൂടാതെ y = sec θ(sec θ + tan θ)(1 - sin θ) ആണെങ്കിൽ, 0° < θ < 90° ആയാൽ xy ന് തുല്യമായത് ഏതാണ്?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFനൽകിയത്:
x = (sec θ - cos θ) (cot θ + tan θ)
y = sec θ(sec θ + tan θ)(1 - sin θ)
കണക്കുകൂട്ടൽ:
⇒ xy
⇒ (sec θ - cos θ) (cot θ + tan θ) x sec θ(sec θ + tan θ)(1 - sin θ)
⇒ \(\frac{(1 - cos^2 θ) (cos θ + sin θ)}{cos θ sin θ} \) x \( \frac{(1+ sin θ)(1 – sin θ)}{cos^2 θ}\)
⇒ \(\frac{(sin^2 θ) }{cos^2 θ sin θ} \) x \( \frac{(1- sin^2 θ)}{cos^2 θ}\)
⇒ tan θ sec θ x 1
⇒ tan θ sec θ
അതിനാൽ ഓപ്ഷൻ 1 ശരിയായ ഉത്തരമാണ്.
Last updated on Jul 18, 2025
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