alleryఒక అల్పకోణం యొక్క సైన్ విలువ 5/13. దాని కొసైన్ విలువను కనుగొనండి.
A5/12
B8/13
C13/12
D12/13
Answer & Solution
Correct answer: D. 12/13
Cos θ అనేది 1 - 25/169 = 144/169 యొక్క వర్గమూలం, అంటే 12/13.
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