Question

If cos x is approximately 0.4226, what is the measurement of x to the nearest degree?

Answer 1

Answer:

D.

Step-by-step explanation:

IF cos(x)=0.4226 then $x = cos^{-1} (0.4226) = arc(0.4226)$ ⇒ x=65° so Compl. x = (90° - x) = 25⁰, finally sin (25⁰) = 0.4226