A. show
sin^2x cos^2x = (1 - cos 4x) / 8
by filling in the table below. start with the left-hand side.
b. find all solutions to the equation
sin^2cos^2x=(2-(sqrt2))/16

a. Recall the double angle identities:

Then

Applying the identity again, we have

as required.

b. Using the result from part (a),

(where is any integer)

to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

hope this !

answer: the two figures are congruent.

step-by-step explanation: they're congruent because figure efgh is reflected across the x and y axis but it was also rotated.

hope it !