X^2 = 16/9
X = 4/3
Length of X is 1 1/3 inches
ur answer is B Step-by-step explanation:
I said so just do it
Answer:
sin(12°)
Step-by-step explanation:
Because sine and cosine are cofunctions, we can use the relation sin(90° - θ) = cosθ to show that cos(78°) = sin(90° - 78°) = sin(12°)