Which expression is equivalent to 6 (x+2y) + 3 + 4y + 5 a.8x + 4y + 8 b.6x + 16y + 8 c. 8x + 7y + 5 d.6x +6y +8
2 answers:
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Answer:
- y = sin(2t)
- y = cos(2t)
Step-by-step explanation:
In the case of each of the answers listed above, the second derivative is equal to -4 times the function, as required by the differential equation.
For y = 2/3t^3, the second derivative is 4t, not -4y.
For y = e^(2t), the second derivative is 4y, not -4y.
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The graph shows the sum of the second derivative and 4y is zero for the answers indicated above, and not zero for the other two proposed answers.
