Question
Download Solution PDFपरवलय y2 = 4kx पर स्थित बिंदु P(4k, 4k) और Q(4k, -4k) लीजिए। यदि शीर्ष A है, तो ∠PAQ का मान क्या है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFव्याख्या:
मान लीजिए ∠ PAM = α और ∠ APM =β
आकृति से, यह स्पष्ट है कि
∠PAQ = ∠PAM + ∠QAM
⇒ ∠PAQ = α + α = 2α
समकोण त्रिभुज AMP में
⇒AM = PM = 4k
⇒ α = β
इस प्रकार, α + β + 90° = 180°
⇒ 2α = 90°
⇒ α = 45°
अतः, ∠ PAQ = 2a = 90°
∴ विकल्प (b) सही है
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