Question
Download Solution PDFsin (5x - 25°) = cos(5y + 25°) எனில், 5x - 25° மற்றும் 5y + 25° ஆகியவை குறுங்கோணங்களாக இருந்தால், (x + y) இன் மதிப்பு என்ன?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகொடுக்கப்பட்டது:
sin (5x - 25°) = cos(5y + 25°), இதில் 5x - 25° மற்றும் 5y + 25° ஆகியவை குறுங்கோணங்கள்,
பயன்படுத்தப்பட்ட கருத்து:
Sinθ = cos (90°- θ)
கணக்கீடு:
கேள்வியின் படி,
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°
∴ சரியான விருப்பம் 3
Last updated on Jul 21, 2025
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