Tan(x)=4 and x is in quadrant III.Find the exact value of cos(x)
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Here is your answer check it is right or not
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farhananur509:
But i've got 1/SQRT(17)..but i didn't know either that is true or not
Ok post it others check and tell you whether you r right or wrong
Ok...but how can i post my answer...this is my first time using 'brainly'
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