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الأسئلة

1 / 10

الوقت

النتيجة

00

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حلّ
sin3x+sin5x+sin7x = 0

x = π/4, π/2,3π/4

x = π/3, 2π/3

x = π/3,π/12,5π/12

حلّ
sin sin x/2 = -1

x= π/2

x= 3π

x= π/4

حلّ
sin3x+sin 5x = 0

x = π/2, 2π/3,4π/3

x = π/3, 2π/3

x = π/3, π/12 ,5π/12

حلّ
cos3x=cos5x

x = π/3, 5 π/3

x = π, 7π /24, 11π/24

x = π/6, π /2, 5π/6

حلّ
sinx+sin3x=0

x= π/2, 2π/3, 4π/3

x= π, 7π/24, 11π/24

x= π/3, π/12, 5π/12

حلّ
sin2x+sinx = 0

x = π/2, 2π/3,4π/3

x = π, 7π/24,11π/24

x = π/6, π/2,5π/6

حلّ
–sinx-sin3x = 0

x = π/2, 2π/3,4π/3

x = π,7π/24 ,11π/24

x = π/3, π/12 ,5π/12

حلّ
cos3x+cos5x+cos7x=0

x = π/4, π/2,3π/4

x = π/3, 2π/3

x= π/4, π/2, π/8

حلّ
–sin2x = cos3x

x = π/3, 5 π/3

x = π, 2 π /3, 4 π/3

x = π/6, π /2, 5π/6

حلّ
cos2x-cosx=0

x= π/2

x= 3π

x = π/3, 5π/3, π