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★লম্ব/অতিভুজ=Sin. ★অতিভুজ/লম্ব=Consec. ★ভূমি/অতিভুজ=Cos. ★অতিভুজ/ভূমি=Sec. ★লম্ব/ভূমি=Tan. ★ভূমি/লম্ব=Cot.

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