how to Find zeros of tan z and cot z

Question : how to Find zeros of tan z and cot z Solution : (a)zeros of tan z We can write \[tan\ z\ =\frac{\sin{z}}{\cos{z}}\] Now zeros of tan z are the zeros of sin z that is \[\sin{z}=0\] \[\sin{z}=\sin{n\pi},\ n=0,\pm1,\pm2,\pm3,\ldots..…

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