I dont believe there are any
Cos theta = base /perp
= sqrt(13)/7
=0.515
Answer a^3-3a
a^2 times a = a^3 you add exponents
Answer:
55/43
Step-by-step explanation:
(x/y) = 7/3, (x^2/y^2)=49/9, multiply by 3 above and multiply 2 below, 3x^2/2y^2=147/18. Next apply C&D and you will get (3x^2+2y^2)/(3x^2-2y^2)=(147+18)/(147-18)=165/129=55/43
