Verify that each equation is an identity.cos(4u) = 2 cos2(2u) - 1
What will be an ideal response?
cos(4u) = cos[2(2u)] = 2 cos2(2u) - 1
Mathematics
You might also like to view...
Solve the following system by any appropriate method. If there is no real number solution, so state.x2 + 5y2 = 4x2 - 5y2 = 8
A. (
, 
), (
, -
), (-
, 
), (-
, -
)
B. (
, 
), (-
, -
)
C. (
, 
), (
, -
)
D. no solution
Mathematics
Multiply.
A. x2 + 
x + 
B. x2 + 
x + 
C. x2 + 
D. x2 + 
Mathematics
Find the reciprocal, if it exists.0.5
A. -2 B. 1 C. 2 D. -0.5
Mathematics
Factor f(x) into linear factors given that k is a zero of f(x).f(x) = 4x3 + (7 - 4i)x2 + (-14 - 11i)x + 3 + 3i; k = 1 + i
A. (x - (1 + i))(x + 3)(4x - 1) B. (x + (1 + i))(x - 3)(4x + 1) C. (x - (1 + i))(x - 3)(4x + 1) D. (x - (1 + i))(x + 2)(4x - 1)
Mathematics