예.
||v(t)||= sqrt(a^2*abs(cos(t))^2 + a^2*abs(sin(t))^2) ||v(t)||= sqrt(a^2*abs(cos(t))^2 + a^2*abs(sin(t))^2) |
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예.
Sleeping...
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sqrt(abs(-4*cos(t)^2 - 4*sin(t)^2)^2 + abs(6*cos(t))^2 + abs(-6*sin(t))^2)/(abs(2*cos(t))^2 + abs(-2*sin(t))^2 + 9)^(3/2) sqrt(abs(-4*cos(t)^2 - 4*sin(t)^2)^2 + abs(6*cos(t))^2 + abs(-6*sin(t))^2)/(abs(2*cos(t))^2 + abs(-2*sin(t))^2 + 9)^(3/2) |
예.
Sleeping...
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