Verify the identity.cos 4? = 2 cos2(2?) - 1
What will be an ideal response?
cos 4? = cos[2(2?)] = 2 cos2(2?) - 1
Mathematics
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Find the distance between points P1 and P2. P1(1, -1, -2) and P2(5, -6, -5)
A. 25
B. 5
C. 50
D. 10
Mathematics
Solve the problem.Jane runs 24 miles a day. Estimate the total number of miles Jane runs in 56 days by rounding each number to the nearest ten.
A. 1800 miles B. 1000 miles C. 1200 miles D. 3000 miles
Mathematics
Graph the polynomial function. f(x) = x4 - 3x3 - x2 + 3
A. 
B. 
C. 
D. 
Mathematics
Find k such that the function is a probability density function over the given interval. Then write the probability density function.f(x) = k(14 - x); 0 ? x ? 14
A. 14; f(x) = 14(14 - x)
B. 
; f(x) = 
(14 - x)
C. 196; f(x) = 196(14 - x)
D. 
; f(x) = 
(14 - x)
Mathematics