Decide whether the expression is or is not an identity.tan2 
= 
A. Identity
B. Not an identity
Answer: A
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Find or investigate the function as requested.Find a function f(n) whose domain is the set of natural numbers and the output produces the terms of the sequence 8, 11, 14, 17, . . .
A. 3n + 5 B. 3n C. 3n - 5 D. n - 5
Perform the indicated operations. Simplify the answer.
? 
A. 11 B. 11i C. -11 D. -11i
Solve the problem.A cubical container measures 2 yd on each edge. What does it cost to fill the container at $2.99 per cubic yd?
A. $17.94 B. $11.96 C. $71.52 D. $23.92
Solve the problem.List all the combinations of 6 objects a, b, c, d, e, and f taken 2 at a time. What is C(6, 2)?
A. ab, ac, ad, ae, bc, bd, be, cd, ce, cf, de, df C(6, 2) = 12 B. aa, ab, ac, ad, ae, af, ba, bb, bc, bd, be, bf, ca, cb, cc, cd, ce, cf, da, db, dc, dd, de, df, ea, eb, ec, ed, ee, ef, fa, fb, fc, fd, fe, ff C(6, 2) = 36 C. ab, ac, ad, ae, af, bc, bd, be, bf, cd, ce, cf, de, df, ef C(6, 2) = 15 D. ab, ac, ad, ae, af, ba, bc, bd, be, bf, ca, cb, cd, ce, cf, da, db, dc, de, df, ea, eb, ec, ed, ef, fa, fb, fc, fd, fe C(6, 2) = 30