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# What is the value of Sec120?

Tutor

Sec120=sec(90+30)=-cosec 30= -2

I can complete all the syllabus very easily and creates students friendly atmosphere

Sec(120)=sec(90+30)=-Cosec30=-2

Tutor

Sec(180-60)°= -sec60°=-2

we know that cos and sec are inverse to each other...... since cos120=cos(180-60)=-cos60=-1/2 hencesec120=1/cos120=-2

Tutor

sec120= sec(90+30) -cosec30 -1/sin30 -2

-2

Tutor

Sec(180-60)°=-sec60°=-2

Math Magician

Sec(180-60)=-Sec60=-2/sqrt(3)

Tutor

-2

Physics and Math Enthusiast_BITS-PILANI,PILANI CAMPUS

sec (120 degrees) = 1/cos(120 degrees) = 1/(-0.5) = -2

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