Solve the equation by using sum-to-product identities in the interval [0, 2?).cos(2x) - cos(4x) = 0
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the power of i.i10
A. 1 B. -i C. i D. -1
Mathematics
Find fraction notation.0.0
A. 0
B. 
C. 
D. 36
Mathematics
Solve the problem. Round the answer to the nearest tenth, if necessary.A rope connects the top of a pole to the ground. The rope is 15 yd long and touches the ground 11 yd from the pole. How tall is the pole?
A. 52 yd B. 13 yd C. 10.2 yd D. 5.1 yd
Mathematics
Find the probability of the given event if a year is selected at random.Easter Sunday falls on a Monday.
A. 
B. 0
C. 
D. 1
Mathematics