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Aptitude
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Verbal Reasoning
Computer Science
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Simplification
If cotA + cotB = x, then value of x is
(cotAcotB + 1)/(cotB - cotA)
(cotAcotB + 1)/(cotB + cotA)
(cotAcotB - 1)/(cotB + cotA)
(cotAcotB - 1)/(cotB - cotA)
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Correct Answer:
(cotAcotB - 1)/(cotB + cotA)
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