Question
Download Solution PDFजर sin (5x - 25°) = cos(5y + 25°), जेथे 5x - 25° आणि 5y + 25° लघुकोन असतील, तर (x + y) चे मूल्य किती?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेल्याप्रमाणे :
sin (5x - 25°) = cos(5y + 25°), जेथे 5x - 25° आणि 5y + 25° लघुकोन असतील
वापरलेली संकल्पना :
Sinθ = cos (90°- θ)
गणना :
प्रश्नानुसार,
sin (5x - 25°) = cos(5y + 25°)
⇒ sin (5x - 25°) = sin 90 - (5y + 25°)
⇒ (5x - 25°) = 90° - (5y + 25°)
⇒ 5x + 5y = 90
⇒ x + y = 90/5
⇒ x + y = = 18°
∴ योग्य उत्तर पर्याय 3 हे आहे.
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