3 1/5 - 2 3/10
x + y + z = 9
2x - y + 3z = 13
- x - z = -6
(ij) * cos[i * log((a + ib)/(a - ib))] = (a ^ 2 - b ^ 2)/(a ^ 2 + b ^ 2)
35% of the pupils in a class wear glasses. 14 pupils wear glasses. How many pupils were there in the class
dy/dx +y =y(sinx+1)
f(x)=8/x-2 +2, for x>2
state the range of f(x)
-|-5+17|
52 ÷ 15 + 4^4 x (7 + 7) – 25
35% of the pupils in a class wear glasses 14 pupils wear glasses how many pupils were there in the class?
