Find the exact value of the expression. Do not use a calculator.3 cot2 45° + 8 sin2 30°
A. 3
B. 5
C. 7
D. ?
Answer: B
Mathematics
You might also like to view...
Solve the system. If there is no solution or if the system's equations are dependent, so state.
A. {(-3, -5, 4)} B. no solution or ? C. {(-3, 4, -5)} D. infinitely many solutions; dependent equations
Mathematics
Solve the problem.Let f(x) = sin x, g(x) = x - ?/6, and h(x) = 2x. Find f(g(?/6)).
A. 1 B. 0 C. 2 D. -1
Mathematics
Write one or more inequalities that describe the set of points.The half-space consisting of the points on and in front of the yz-plane
A. y ? 0, z ? 0 B. x ? 0 C. y ? 0, z ? 0 D. x ? 0
Mathematics
Find the slope.Find the slope of a line parallel to the line y = 
x - 3.
A. 
B. -3
C. - 
D. undefined
Mathematics