Question

Apasă pe imagine dacă nu înțelegi
Cât mai repede, vă rog!

Făceți-le cât mai scurte!
Dau coroană

Answer 1

i) x<24:4 => x<6=> x€ {0,1,2,3,4,5}

j) x<\ 33:3=> x<\ 11=> x€{0,1,2,3...11}

k) x<7×2=> x<14=> x€{0,1,2,3,4...13}

l) x<\ 2×4=> x<\ 8=> x€{0,1,2,3,4..8}

m) 3x<44-11=> 3x<33=> x<33:3=> x<11=> x€{0,1,2,3..10}

n) 7x</ 52-3=> 7x<\ 49=> x<\ 49:7=> x<\ 7=> x€{0,1,2,3,4,5,6,7}

o) 5x>\ 22+23=> 5x>/ 45=> x>\ 45:5=> x>\ 9=>x€{9,10,11,12…}

p) 6x>\ 72+18=> 6x>\ 90=> x>\ 90:6=> x>\ 15=> x€{15,16,17,18.....}

s) 10^x<10^5=> x<5=> x€{0,1,2,3,4}

t) 2^(2x+1)>\ 2^7=> 2x+1>\ 7=> 2x>\ 6=> x>\ 3=> x€{3,4,5,6,7....}

u) 4^(3x-5)>4^4=> 3x-5>4=> 3x>9=> x>3=> x€{4,5,6,7....}