From tkinter import tk-Tk ()
Options Window
tk.geometry ("400x600")
Help
canvas-Canvas (tk, width=400, height=350)
canvas.pack
()
flower image=Photo Image (file=' flowers.png )
def btn click ()
:
lb12-Label (text-ent.get() +", 3 HEM HaponeSA")
1b12.place (x=75, y=150) canvas.create_image (100, 175, anchor=NW, image=flower
bunl-Button {text-"pasita ", command btn
btnl.place (x-75,7=75, width=100,height=50)
click)
btn2-Button (text="Baxin", command-tk.destroy) btn2.place (x-225, y=75, width=100, height=40)
ent-Entry (bd=1)
ent.place (x-225, y=25, width-100, height=30)
lbtl=Label
(text="Bame iMA")
lbtl.place (x-75, y=25, width-100, height=50)
a) π/2<t<π - 2-ая четверть
cost - " - "
tgt и ctgt - " - "
cost = -√(1-(4/5)²) = - √(1 - 16/25) = - √9/25 = -3/5
tgt = sint / cost = 4/5 : (-3/5) = -4/3
ctgt = 1/tgt = -3/4
б) 0<t<π/2 - 1-ая четверть
cost , tgt, ctgt - " + "
cost = √(1-(5/13)²) = √(1- 25/169) = √(144/169) = 12/13
tgt= 5/13 : (12/13)=5/12
ctgt = 12/5
в) -π/2<t<0 - 4-ая четверть
cost - " + "
tgt, ctgt - " - "
cost = √(1-(-0.6)²) = √(1-0.36) = √0.64 = 0.8
tgt = -0.6 / 0.8 = - 6/8 = - 3/4
ctgt = - 4/3
г) π<t<3π/2 - 3-я четверть
cost - " - "
tgt, ctgt - " + "
cost = - √(1-(-0.28)²) = - √0.9216 = - 0.96
tgt = -0.28 / (-0.96) = 28/96 = 7/24
ctgt = 24/7 = 3 ³/₇
Пошаговое объяснение:
a) π/2<t<π - 2-ая четверть
cost - " - "
tgt и ctgt - " - "
cost = -√(1-(4/5)²) = - √(1 - 16/25) = - √9/25 = -3/5
tgt = sint / cost = 4/5 : (-3/5) = -4/3
ctgt = 1/tgt = -3/4
б) 0<t<π/2 - 1-ая четверть
cost , tgt, ctgt - " + "
cost = √(1-(5/13)²) = √(1- 25/169) = √(144/169) = 12/13
tgt= 5/13 : (12/13)=5/12
ctgt = 12/5
в) -π/2<t<0 - 4-ая четверть
cost - " + "
tgt, ctgt - " - "
cost = √(1-(-0.6)²) = √(1-0.36) = √0.64 = 0.8
tgt = -0.6 / 0.8 = - 6/8 = - 3/4
ctgt = - 4/3
г) π<t<3π/2 - 3-я четверть
cost - " - "
tgt, ctgt - " + "
cost = - √(1-(-0.28)²) = - √0.9216 = - 0.96
tgt = -0.28 / (-0.96) = 28/96 = 7/24
ctgt = 24/7 = 3 ³/₇