Question 1
Find the length of the curve x = cos t + sin t, y = sin t - cos t, from t =

to t =

.
◦

units
◦

units
◦

units
◦

units
◦

units
Question 2
Find the length of x = ln sin θ, y = θ,

≤ θ ≤

.
◦ ln (3 +

) units
◦ ln (1 - 3

) units
◦ ln (2 +

) units
◦ ln (1 + 2

) units
◦ ln (4 -

) units