Question

a)1+2+3+...+73=?
b)125 la puterea 42 + 25 la puterea 63=
c) (8 la puterea 37 x 81 la puterea 25) : (16 la puterea 27 x 27 la puterea 33)=
d) 2 la puterea 1 x 2 la puterea 2 x 2 la puterea 3 x 2 la puterea 4 x ... x 2 la puterea 45
=
e) (1+5 la puterea 10):(1+5 la puterea 10)=

Answer 1

a.1+2+3+...+73=(73*74)/2=2701


$b. 125^{42}+ 25^{63} = 5^{3*42} +5^{2*63} = 5^{126} + 5^{126}= 5^{126+126} = 5^{256}$