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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Deepak singh 1 Best Answer
Refer attached
But in the 3rd quadrant cosine is -ve?
here
yes , you are correct when we take angle in anticlockwise direction. But here angle is in closkwise..
see..
okay, so if the angle is taken along the clockwise direction don't we botherr about which quadrant it hit?
wait
Refer attached proof