Someone me with this ! 4. given cos a = 0.25, find angle a in degrees. round your answer to the nearest to the hundredth. a. 34.12 degrees b. 56.78 degrees c. 75.52 degrees d. 123.98 degrees

Solution:

Given cos A = 0.25.

we have been asked to find value of the angle A in degree.

As we know that if

So using this concept we can write

Hence the correct option is C.

answer: i think it is (1,-2)