Answer:
Cos 0 = 4/sqrt(65)
Cosec 0 = -sqrt(65)/7
Step-by-step explanation:
Cot 0 = -4/7
Tan 0 = -7/4
1 +Tan²0 = sec²0
1 + 49/16 = 65/16 = sec²0
Sec 0 = sqrt(65)/4
Cos 0 = 1 ÷ sec 0
Cos 0 = 4/sqrt(65) or 4sqrt(65)/65
Cosec 0 = cot 0 × sec 0
= -4/7 × sqrt(65)/4
= -sqrt(65)/7
