(2,3) so x=2, y=3 and h=(2^2+3^2)^(1/2)=√13
sina=3/√13, cosa=2/√13, tana=3/2
Afterwards multiply sina and cosa by √13/√13 and get sina=(3√13)/13 and cosa=(2√13)/13
Step-by-step explanation:

Answer:
x = 0; x = 5
Step-by-step explanation:
2x² = 10x
2x² - 10x = 0
2x(x - 5) = 0
x = 0; x = 5
Answer:
25
Step-by-step explanation:
2 x 2 x 2 x 2 + 3 x 3
4 x 2 x 2 + 3 x 3
8 x 2 + 3 x 3
16 + 3 x 3
16 + 9
25