" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
a=tgα
tgα=sinα/cosα
a)
sin²α+cos²α=1
sin²α=1-(60/61)²
sin²α=1-3600/3721=121/3721
sinα=11/61
a=-11/60
y=-11/60x+b
-11/60*12+b=-6
-11/5+b=-6
b=-6+2,2
b=-3,8
Odp. y=-11/60x-3,8
b)
sin²α=16/25
cos²α=1-16/25=9/25
cosα=-3/5
tgα= -4/3
y=-4/3x+b
-4/3*(-2)+b=5/2
8/3+b=5/2
b=15/6-16/6= -1/6
Odp. y=-4/3x-1/6