25 БАЛЛОВ СРОЧНО! dy/dx

Question

25 БАЛЛОВ СРОЧНО! dy/dx

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Answer 1

Dx=((t+1)'*t-t'*(t+1))/t²=(t-t-1)/t²=-1/t²
dy= ((t-1)'*t-t'*(t-1))/t²=(t-t+1)/t²=1/t²
dy/dx=(1/t²)/(-1/t²)=-1
dy/dx=-1