Answer:
Since A={a,b}, then 
. Remember that the Cartesian Product of two sets A, B is defined by
. Then
Answer:
the last one is true
Step-by-step explanation:
sin R=PQ/PR=TS/TR
Answer:
It is an improper fraction.
Step-by-step explanation:
With fractions, if the numerator is equal to or grater than the denominator, the fraction is considered an improper fraction.
Multiply each number across from another
(5y^2 – 7y+6) + (-4y^2 + 3y+1)
y^2 - 4y + 7
Done.
