5.2 sin (45(x + 8°)) - 1 = -3,解x,答案用度表示
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5.2sin(45(x+8°))-1=-3,解x,答案用度表示5.2sin(45(x+8°))-1=-3,解x,答案用度表示5.2sin(45(x+8°))-1=-3,解x,答案用度表示2sin(45
5.2 sin (45(x + 8°)) - 1 = -3,解x,答案用度表示
5.2 sin (45(x + 8°)) - 1 = -3,解x,答案用度表示
5.2 sin (45(x + 8°)) - 1 = -3,解x,答案用度表示
2 sin (45(x + 8°)) - 1 = -3
2 sin (45(x + 8°)) = -3+1
sin (45x + 360°) = -2÷2
sin (45x) = -1
45x=270º+k*360º （K∈Z)
x=(270º+k*360º)÷45
x=6º+k*8º （K∈Z)
2 sin (45(x + 8°)) - 1 = -3
2 sin (45(x + 8°)) =-2
sin (45(x + 8°))= - 1
45(x + 8°)=k×360°+270°
x+8°=k×8°+6°
x=k×8°+6°-8°
x=k×8°-2°是5.2不是25.2sin (45(x + 8°)) - 1 = -3
5.2...
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2 sin (45(x + 8°)) - 1 = -3
2 sin (45(x + 8°)) =-2
sin (45(x + 8°))= - 1
45(x + 8°)=k×360°+270°
x+8°=k×8°+6°
x=k×8°+6°-8°
x=k×8°-2°
收起
5.2 sin (45(x + 8°)) - 1 = -3
sin(45(x+8)=-0.385
由计算器可得：
45(x+8°)=-22.64°
x=-8.503°
5.2 sin (45(x + 8°)) - 1 = -3,解x,答案用度表示
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