Rule of trigonometric functions:-
sin a = cos(90 - a)
Here a = 90°.
sin 90 = cos (90 - 90)
1 = cos 0.
cos 0 = 1.
So the cos 0 = 1.
Answer:
24
Step-by-step explanation:
Answer:
47
Step-by-step explanation:
x-5=42
x=42+5
x=47
Answer: Screams internally
Step-by-step explanation: