alleryایک دائیں مثلث کے اطراف 1، √3 اور 2 ہوتے ہیں۔ 1 کے مخالف زاویہ کا کوسائن کیا ہے؟
A1/2
B1/√2
C√3/2
D1
Answer & Solution
Correct answer: C. √3/2
ایک 30-60-90 مثلث میں 30 ڈگریوں سے متصل پہلو فرضی کا √3/2 ہے۔
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