Math, asked by rababsabir175, 1 year ago

When do we get the value cos x= -1/2

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Answered by ajeshrai

1

you can see your answer

Attachments:

rababsabir175: But how did u get to know that on 2pi/3 value of cos is -1/2

rababsabir175: Ok thanks..

rababsabir175: Can u help me to find the general solution of tanmx + tannx= 0

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