Teaching Jharkhand (JSSC) PRT (1 to 5) Mock Test 2023 Quantitative Aptitude Trigonometry

যদি sec 3A = cosec (A - 72°) হয়, তাহলে A এর মান কত?

1
34.5 ডিগ্রী
2
30 ডিগ্রী
3
40.5 ডিগ্রী
4
25 ডিগ্রী
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