Answer:
3
Step-by-step explanation:
36-27 = 9

Answer:
sec²x - tan²x = 1
sin²x + cos²x = 1
These two among the following are correct trigonometric identities.
Answer:
Step-by-step explanation:
Let the number be x
Four time that number = 4x
The difference between a hundred and a number = 100 -x
100- x = 4x
100 = x + 4x
100 = 5x
5x = 100
x = 100/5 = 20
Answer: X=5.25
Explanation: the entire angle is a 90. 90-6=84. 84 divided by 16 is 5.25