Question
Download Solution PDF\(\rm sinA=-\frac{3}{5}\) , A ஆனது III வது கால்பங்கில் இருந்தால், sec A இன் மதிப்பு:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகொடுக்கப்பட்டது:
Sin A = (- 3/5)
A என்பது 3வது கால்பங்கில்ல் உள்ளது.
பயன்படுத்தப்படும் வாய்பாடு:
Sin θ = P/H
Sec θ = H/B
எங்கே, H = கர்ணம்; P = செங்குத்தாக; B = அடித்தளம்
கணக்கீடு:
Sin A = - (3/5) = P/H
பித்தகோரியன் தேற்றத்தால்:
⇒ H2 = P2 + B2
⇒ 52 = 32 + B2
⇒ B2 = 25 - 9
⇒ B = √16 = 4
இப்போது, sec A = - (H/B) = - (5/4)
∴ சரியான பதில் - (5/4).
Last updated on Jun 25, 2025
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