18+2-4/2*8
f(x)=sen(2x-π/2) en x=0
10 square 30
3√2 + 5√2 = _____ ___ 6⁴√5
solve the following systems of linear equation by substitution method
x-y=16
x+3y=-4
SOLVE
12 ÷ 6 × 20
k divided by 3+15=6
d divided by 7 + 2=8
c divided by 5 + 9=12
