State whether the following involves permutations or combinations. It is not necessary to solve the problem.How many different user ID's can be formed from the letters W, X, Y, Z if no repetition of letters is allowed?
A. Permutation
B. Combination
Answer: A
Mathematics
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Write each expression using the LCD as the denominator.
and 
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Mathematics
Verify the identity.csc4 x - cot4 x = csc2 x + cot2 x
What will be an ideal response?
Mathematics
Find the indicated cross product.v = -6i - 3j + k, w = -3i - 5j - kFind v × w.
A. -8i + 9j + 3k B. -2i - 3j + 39k C. 21i - 8j + 9k D. 8i - 9j + 21k
Mathematics
Write the logarithmic equation as an exponential equation.ln M = 2
A. e2 = M B. eM = 2 C. M2 = e D. 2e = M
Mathematics