Verify that each equation is an identity.cos4 x = 
(3 + 4 cos(2x) + cos (4x))
What will be an ideal response?
cos4 x = cos2 x cos2 x = 
2 = 
(1 + cos(2x))2 = 
(1+ 2 cos(2x) + cos2(2x)) = 
= 
( 3 + 4 cos(2x) + cos(4x)).
Mathematics
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Find the area of the rectangle or square.
16 cm
A. 64 square centimeters B. 256 square centimeters C. 512 square centimeters D. 251 square centimeters
Mathematics
Solve and graph the solution set.-6(4x + 1) < -6(5x + 3)
A. {x|x > -30} or (-30, ?)
B. {x|x > -2} or (-2, ?)
C. {x|x < -30} or (-?, -30)
D. {x|x < -2} or (-?, -2)
Mathematics
Solve using the quadratic formula.6x2 + 17x + 12 = 0
A. - 
, - 
B. 
, 
C. 
, - 
D. - 
, - 
Mathematics
Fill in the blank with one of the words or phrases listed below.
The 
is the sum of the exponents on the variables in the term.
A. term B. degree of a term C. degree of a polynomial D. coefficient
Mathematics