book Maths Puzzle Numerical Ability

cot(-x)
_______
csc(-x)

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Question: When Mercury is at its maximum distance from sun it is 43.4 million miles. At its minimum it is 28.6 million miles. What is the difference of its maximum and minimum dist if i am expecting $1,716,000 but earned $7,093,000 in terms of % how much did i exceed my expectations by?