If (\sin^2 x=\frac{1}{4}) and (x) is in the first quadrant, what is the value of (\cos x)?
Answer and explanation
Correct answer: (\frac{\sqrt{3}}{2})
(\cos^2 x=1-\frac{1}{4}=\frac{3}{4}). In the first quadrant, (\cos x=\frac{\sqrt{3}}{2}) is taken.
Frequently asked questions
What is the correct answer to this question?
(\frac{\sqrt{3}}{2})
Why is this the correct answer?
(\cos^2 x=1-\frac{1}{4}=\frac{3}{4}). In the first quadrant, (\cos x=\frac{\sqrt{3}}{2}) is taken.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Trigonometric functions and their properties.