Question

va rog ex 1 si 2 ! pls
Dau coroana ! pls

Answer 1

1)
63(1+2+3+.......+48)= 63 [(48*49)/2]=63*1176= 74088=27*2744=3^3*2744
2)
x= (4^n+1:2^2n+9^3n:27^2n-1^5):3^2-2^3= 2^2(n+1):2^2n+3^6n:3^6n-1) : 9-8 = (2^2n *2^2:2^2n+0):1=1*4+1-1=4=2^2
Y=( 5^6:5^6+7^3:7^3)^n=(1+1)^n= 2^n
z=25-24* 3^n=1*3^n=3^n
z>y