Ireally need with questions 26 through 31. (attachment down below)

An angle that measures between 90 and 180° is called a(,

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20