Question

cot 85 + sec 15= ?
what will be next ​

Answer 1

Answer:

Solution : cot 85° + cos 75° = cot 90° – 5° + cos 90° – 15°= tan 5° + sin 15°. Related Answer ... Express the trigonometric ratios sin A, sec A and tan A in terms of cot. play · like-icon.

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