state gov APPSC Forest/Assistant Beat Officer (ఫారెస్ట్/అసిస్టెంట్ బీట్ ఆఫీసర్) (Pre + Mains) Mock Test 2025 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

cosec A = sec(36° + 5A) হলে, cos(10A) এর মান কত?

1

-1

2

1/2

3

0

4

1

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