Math, asked by pshiva2227, 8 months ago

What is the value of cos ( 2π÷3)

Answers

Answered by harshitachandresh32

1

Answer:

-1/2

in trigonometry π=180

therefore cos (2*180/3)

cos(360/3)

cos(120)

and cos120°= -1/2...

hope it will help...!!

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