Find an algebraic expression for the given expression.cos(2 sin-1 x)
A. 1 - x2
B. 2x2 + 1
C. 1
D. 1 - 2x2
Answer: D
Mathematics
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Find the modulo class to which the number belongs for the given modulo system.-14, mod 4
A. 0 B. 2 C. 1 D. 3
Mathematics
x2 + dx + 2d + 2x
A. x(x + 2) B. x(x + d) C. x(x + d) + 2 D. (x + 2)(x + d)
Mathematics
Factor completely.x2 + 30x + 225
A. (x + 15)(x - 15) B. (x + 15)2 C. (x + 225)(x + 1) D. (x - 15)2
Mathematics
Solve the problem.Approximate the area under the graph of f(x) = x2 from 0 to 4 by partitioning the interval into 4 subintervals of equal length and choosing t to be the right endpoint.
A. 30 B. 36 C. 33 D. 27
Mathematics