If x is a positive acute angle and cos x =the square root of 3 divided by 4, what is the exact value of sin x?
Using Pythagorean Theorem and SOHCAHTOA you can find the if the cos x = sqrt 3/4 then sin x = sqrt 19/sqrt 3 or 2.517. ChaCha again.
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About Pythagorean Theorem
The Pythagorean Theorem states ''In any right triangle, the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares whose sides are the two legs (the two sides that meet at a right angle).''
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