1) (3¹⁰⁰ +3¹⁰⁰ +3¹⁰⁰ ) : 3⁹⁸ + 5⁰=
3¹⁰⁰(1+1+1) :3⁹⁸ +1=
= 3² * 3+1 =
= 27+1=28
2)54° 18' + 34⁰ 47' = 89⁰ 5'
3)(2k+2+2k+4+2k+6+2k+8+2k+10+2k+12+2k+14+2k+16+2k+18+2k+20)=110
20k+ 110=110
20k=110-110
20k=0
k=0
a=2k+2=2*0+2=2
b=0+4=4
c=6
d=8
e=10
f=12
g=14
h=16
i=18
j=20
