<span>(3x^3-4x^2-5x+3)+(-4 - 6x^3+x^2 - 5x+5)
= </span><span>3x^3 - 4x^2 - 5x + 3 - 4 - 6x^3 + x^2 - 5x + 5
= -3x^3 - 3x^2 - 10x + 4</span>
1/27
Cuz y=3^(-3)=1/(3^3)=1/27
Answer:
Step-by-step explanation:
9^(1/2) =3
this expression is : 3(r^(5/2) ×r^(-1) )(t×t^(1/2))
3r^(5/2 - 1)×t^(1+1/2)
3^(1/2)×t^(3/2)...... answer : 2
Cos y = 16 / 17.89 = 0.8944
y = cos^-1 (0.8944) = 26.57°
tan 26.57 = BA / 17.89
BA = 17.89 tan 26.57 = 8.95
tan x = 17.89 / 8.95 = 1.999
x = arctan 1.999 = 63.43
sin x = sin 63.43 = 0.8944
