20. Stoke's Theorem A. cannot be used as a substitute to find the line integral. B. will require the determination of a normal unit vector. C. as a line integral can be solved using its differential form. can be regarded both as a surface integral and line integral. D.
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
Choose the letter of the correct answer(s). Choose E if none of the choices is correct.
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