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प्रश्न
Using trigonometric tables, find the approximate value of cot 47° 13'.
योग
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उत्तर
Given: Find cot 47° 13'.
Step-wise calculation:
1. cot θ = tan (90° – θ)
So, cot 47° 13' = tan 42° 47'.
2. Looking up tan 42° 47' in the trigonometric tables, interpolation gives tan 42° 47' ≈ 0.9255.
3. Hence, cot 47° 13' = 0.9255 rounded.
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