Find all solutions of the equation in the interval [0, 2?).cos2 x - 1 = 0
A. 
B. {0}
C. {0, ?}
D. 
Answer: C
You might also like to view...
Factor the expression. Express your answer so that only positive exponents occur. (5m + 9)-6/5 + (5m + 9) 1/5 + (5m + 9) 7/5
A. (5m + 9)-6/5 [1 + (5m + 9)-7/5 + (5m + 9) -13/5] B. (5m + 9)-6/5 [1 + (5m + 9) 7/5 + (5m + 9) 13/5] C. (5m + 9)-6/5 [1 + (5m + 9) 7/5 - (5m + 9) 13/5] D. (5m + 9)-6/5 [1 + (5m + 9) 8/5 + (5m + 9) 11/5]
Solve.A $290.00 dress is on sale for 25% off. Find the discount and the sale price.
A. Discount: $72.50; sale price: $217.50 B. Discount: $7.25; sale price: $217.50 C. Discount: $72.50; sale price: $2827.50 D. Discount: $7.25; sale price: $2827.50
Perform the indicated operation. Assume that all variables are nonnegative.m
+ m
A. 2m
B. 4m
C. 2m
D. 4m
Write an equation for the line described. Write the equation in the form specified.parallel to y = -3, through (4, 9)
A. y = -3 B. y = 4 C. y = 9 D. y = -9