Answer:
Step-by-step explanation:
a) 7/5, 3/10, -13/4,-27/1,0
b)36/1,-45/1,21/5, -4/5, 91/6,-2/9

We know that : (a - b)(a + b) = a² - b²

We know that : 1 - sin²x = cos²x



We know that : sec²x = 1 + tan²x







X= 14 + 9y over 2
y= -x - 7 over 6
Answer:
x = 5
, −
4
Step-by-step explanation:
Solve the rational equation by combining expressions and isolating the variable x
.
72°
the sum of the exterior angles of a polygon = 360°
for a pentagon with 5 sides the
exterior angle =
= 72°