Question

Which of the following is not defined?
sin 90°
tan 0°
cosec 0°
cot 90°​

Answer 1

Answer:

cosec 0 is not defined.

Answer 2

$Which \:of \: the \: following \:is \:not \\ defined ?$

$i) sin \:90\degree = 1$

$ii) tan \:0\degree = 0$

$\red{iii) Cosec \:0\degree}\green{ = Not \: defined}$

$iv) cot \:90\degree = 0$

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