Answer:
ez
Step-by-step explanation:
14/15 - 9/15 = 1/3
1/3 = 5/15
aₙ=(-2)ⁿ*2.
1) -4*(-2)=8; 8*(-2)=-16; -16*(-2)=32, ...
2) the required equation is:
aₙ=(-1)ⁿ*2ⁿ*2; ⇒ aₙ=(-2)ⁿ*2 or aₙ=(-1)ⁿ*2ⁿ⁺¹.
It is correct
20 + 30 = 50
