(S + 12) + (3s - 8)
= s + 12 + 3s - 8
= s + 3s + 12 - 8
= 4s + 4
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Step-by-step explanation:
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<span>cos 4x + cos 2x = 2 - 2 sin^2 2x - 2 sin^2 x
cos 4x + cos 2x = 1 + 1 − 2sin^2(2x) − 2sin^2(x)
cos 4x + cos 2x = (1 - 2sin^2(2x)) + (1 - 2 sin^2(x)
cos 4x + cos 2x = cos 4x + cos 2x</span>
Answer:
6 permutations
Step-by-step explanation:
age
sage
sag
gauss
gas
usage
