engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

cot25° × cot35° × cot45° × cot55° × cot65° এর মান নির্ণয় করুন।

1

√3

2

2

3

1

4

0

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