Find `(dy)/(dx)` , when `x=(e^t+e^(-t))/2` and `y=(e^t-e^(-t))/2`

Find (dy)/(dx), when x=(e^t+e^(-t))/2 \ a n d \ y=(e^t-e^(-t))/2

Find (dy)/(dx),quad when x=(e^(t)+e^(-t))/(2) and y(e^(t)-e^(-t))/(2)

If x=(e^t+e^(-t))/2 and y=(e^t-e^(-t))/2 , then dy/dx=

Find the equation of the hyperbola given by equations x=(e^t+e^(-t))/2 and y=(e^t-e^(-t))/3,t in R .

Find the eccentricity of the hyperbola given by equations x=(e^t+e^(-t))/2 and y=(e^t-e^(-t))/3,t in R .

Find the eccentricity of the hyperbola given by equations x=(e^t+e^(-t))/2a n dy=(e^t-e^(-t))/3,t in Rdot

Find dy/dx , when : x=e^(t)(sint+cost)andy=e^(t)(sint-cost) .