If A-B-C-90- then A- B- C- A B C

The correct option is A 1cot A+cot B+cot C/cot A cot B cot C=cot A cot B cot C/cot A cot B cot C=1 ...

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Trigonometric Ratios of Compound Angles

If A+B+C=90∘ ...

Question

If A + B + C = $90^{\circ}$ then $\frac{c o t A + c o t B + c o t C}{c o t A c o t B c o t C}$

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