Y = t*e^(-t/2)
y' = t' [e^(-t/2)] + t [e^(-t/2)]' = e^(-t/2) + t[e^(-t/2)][-1/2]=
y' = [e^(-t/2)] [1 - t/2] = (1/2)[e^(-t/2)] [2 - t] = - (1/2) [e^-t/2)] [t -2]
Say base1 = 26 and base2 = 12 then your height is 18.
1/2 (18) times ( 26+12)
So that's 9 times 38=342
342 squared is your answer
It can sometimes be rational
I got the answer isa D mate
Answer:
a = 2a(- 1)
Step-by-step explanation:
I have done the maths
