Question
Download Solution PDF(cosec θ - sin θ) (sec θ - cos θ) (tan θ + cot θ) चे मूल्य काय आहे?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेल्याप्रमाणे:
(cosec θ - sin θ) (sec θ - cos θ) (tan θ + cot θ) ची किंमत काढा.
वापरलेले सूत्र:
आपण त्रिकोणमितीय ओळख वापरून व्यंजनाचे सरलीकरण करू.
गणना:
(cosec θ - sin θ) (sec θ - cos θ) (tan θ + cot θ)
आपण प्रत्येक पद वेगळे सरलीकृत करूया:
cosec θ - sin θ = (1)/(sin θ) - sin θ
sec θ - cos θ = (1)/(cos θ) - cos θ
tan θ + cot θ = (sin θ)/(cos θ) + (cos θ)/(sin θ)
ती एकत्र जोडा:
⇒ ((1)/(sin θ) - sin θ) ((1)/(cos θ) - cos θ) ((sin θ)/(cos θ) + (cos θ)/(sin θ))
पुढील सरलीकरण:
⇒ ((1 - sin2 θ)/(sin θ)) ((1 - cos2 θ)/(cos θ)) ((sin2 θ + cos2 θ)/(sin θ cos θ))
चल sin2 θ + cos2 θ = 1 वापरून:
⇒ ((cos2 θ)/(sin θ)) ((sin2 θ)/(cos θ)) ((1)/(sin θ cos θ))
⇒ (cos2 θ)/(sin θ) x (sin2 θ)/(cos θ) x (1)/(sin θ cos θ)
⇒ (cos2 θ x sin2 θ)/(sin θ x cos θ x sin θ x cos θ)
⇒ (cos2 θ x sin2 θ)/(sin2 θ x cos2 θ)
⇒ 1
∴ योग्य उत्तर पर्याय (1) आहे.
Last updated on Jun 17, 2025
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