Question

sec 0º = 1. Why??????​

Answer 1

Answer:

cos0=1

sec=1/cos

cos=1/sec

sec0=1

hence proved and answer

Answer 2

Step-by-step explanation:

tan 0 degree= 1

cot 0 degree= 1/0 as it is not defined

sec0 degree= 1/ cos0 degree= 1/1.

hope it helps u