Well costheta=1, at 0, 2pi,...
knowing this we can exclude the first two as the are not undefined anywhere.
tan is sin/cos, at 0 sin is also 0 so it becomes 0/1 which is 0, not undefined.
sec is1/cos, cos is 1, this is just 1
csc is 1/sin, sin is 0, 1/0 is undefined, meaning there will be an asymptote
cot is cos/sin, this is again 1/0, so it is also an asymptote
The last two answers are the ones you want
Answer:
A =42 in^2
Step-by-step explanation:
This is a trapezoid
The area of a trapezoid is found by
A = 1/2(b1+b2)h where b1 and b2 are the lengths of the bases
A = 1/2(13+8) *4
A =42 in^2
Answer:
28800
Step-by-step explanation:
Answer:
(c) All of the triangles are similar
Step-by-step explanation:
All of the triangles are similar by the AA similarity postulate.
__
Two angles of one triangle being the same as two angles of another triangle means all angles of the two triangles are the same. (Two angles define the third.) Triangles with congruent corresponding angles are similar.
Answer:
yd by yds because if you multiply the two fractions you get