Question

Find the trigonometric functions of angle of measure 120 degree

Answer 1

Answer:

sin 120°=2×90°+0=sin0°=1

Step-by-step explanation:

cos120°=2 × 90°+0=-cos0°=0

tan120°=2×90°+0=-tan0°=-infinity

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Answer 2

Answer:

• Let angle XOP=120°.its terminal arm intersects unit circle in p(x,y).
• Drow PQ perpendicular to the X-axis
• there for troangleOPQ is30-60-90 triangle.
• Therefore OQ=1/2 andPQ=√3/2 and OP=1
• As P lies in the second quadrant, x= -1/2 Andy= √3/2
• Therefore sin120°=y=√3/2,cs120°=x=-1/2,tan120°=y/x=-√3,cosec120°=1/y=2/√3, sec120°=1/x=-2, cot120°=x/y=-1/√3

Step-by-step explanation:

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