Teaching HTET PGT Level 3 - 2024 Mock Test Mathematics Trigonometry Trigonometric Identities

যদি 2cosec2 45° + a sin2 60° - \(\frac{3}{4}\) tan2 30​° = 10 হয়, তাহলে a এর মান নির্ণয় করুন।

1
1
2
0
3
\(\frac{15}{2}\)
4
\(\frac{25}{3}\)
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