all amount to 0, the first term disappears. Meanwhile, 
in an alternating pattern, which agrees with the sequence 
. Hence 
for integers 
.
Verify each equation
1. cos(x + (pi/2)) = -sin x
2. sin(n pi + θ) = -1^(n) sin θ, n is...
Mathematics, 03.11.2019 19:31 sofietyeweirdo
Verify each equation
1. cos(x + (pi/2)) = -sin x
2. sin(n pi + θ) = -1^(n) sin θ, n is an integer
3. (sin x + cos x)^(2) = 1 + sin 2x
Answers: 2
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