Use the power-reducing identities to rewrite the expression that does not contain trigonometric functions of power greater than 1.sin4 x - cos4 x
A. sin 2x
B. cos 2x
C. - cos 2x
D. cos x
Answer: C
Mathematics
You might also like to view...
Find the volume of the indicated region.the region that lies under the plane 
and over the triangle with vertices at 
, 
, and 
A. 6 B. 12 C. 10 D. 8
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.The "trapezoidal" sum can be calculated in terms of the left and right-hand sums as ? .
A. left-hand sum - right-hand sum
B. left-hand sum + right-hand sum
C. 
D. None of the above is correct.
Mathematics
Find the common ratio for the geometric sequence.3, 
, 
, 
, . . .
A. 
B. 
C. 
D. 
Mathematics