cos²(x) = 3 sin²(x)
1 - sin²(x) = 3 sin²(x)
1 = 4 sin²(x)
1/4 = sin²(x)
± √(1/4) = sin(x)
± 1/2 = sin(x)
sin(x) = 1/2 or sin(x) = -1/2
[x = arcsin(1/2) + 2nπ or x = π - arcsin(1/2) + 2nπ]
… … … or [x = arcsin(-1/2) + 2nπ or x = π - arcsin(-1/2) + 2nπ]
(where n is any integer)
[x = π/6 + 2nπ or x = 5π/6 + 2nπ]
… … … or [x = -π/6 + 2nπ or x = 7π/6 + 2nπ]
Answer:
22
Step-by-step explanation:
double negative is a plus sign
13--9=22
Answer:
Step-by-step explanation:
This is a 45-45-90 triangle and the side lengths are in the ratio . Given that the hypotenuse is , and .
Answer:
25
Step-by-step explanation:
1=2 is a 5
1=10 but is 20
20+5????
Answer:
12
Step-by-step explanation:
you have 72 and 6
72 divided by 6 equals 12.
12 x 6 = 72
12 = x