Find the value of x in each figure

Step-by-step explanation:

b. It is a right angle triangle with 2 sides given we are to use Pythagoras theorem.

c. Here 2 angles and one side is given. So we use sine rule

Note: sin 90 is 1

sin 60 is √3 /2

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a. since the x is the same we would use sin rule

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since no one answered yet i will give it a shot, not completely sure tho.

i think it should be y=cos(x+2pi), (third answer, answer c)

good luck.