>
Exams
>
Mathematics
>
Trigonometric Equations
>
if sin is the gm between sin a and cos a then cos
Question:
If sin β is the GM between sin a and cos a, then cos 2β is equal to
CUET (PG) - 2023
CUET (PG)
Updated On:
Mar 12, 2025
\(2sin^2=(\frac{\pi}{4}-a)\)
\(2cot^2=(\frac{\pi}{4}-a)\)
\(2cos^2=(\frac{\pi}{4}-a)\)
\(2sin^2=(\frac{\pi}{4}+a)\)
Hide Solution
Verified By Collegedunia
The Correct Option is
A
Solution and Explanation
The correct answer is(A):
\(2sin^2=(\frac{\pi}{4}-a)\)
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on Trigonometric Equations
If \( \theta \in \left[ -\frac{7\pi}{6}, \frac{4\pi}{3} \right] \), then the number of solutions of the equation \[ \sqrt{3} \csc^2 \theta - 2 (\sqrt{3} - 1) \csc \theta - 4 = 0 \] is:
JEE Main - 2025
Mathematics
Trigonometric Equations
View Solution
If \[ \lim_{x \to 0} \frac{\cos(2x) + a \cos(4x) - b}{x^4} \] is finite, then \( a + b = \) __.
JEE Main - 2025
Mathematics
Trigonometric Equations
View Solution
The sum of all values of \( \theta \in [0, 2\pi] \) satisfying \( 2\sin^2\theta = \cos 2\theta \) and \( 2\cos^2\theta = 3\sin\theta \) is:
JEE Main - 2025
Mathematics
Trigonometric Equations
View Solution
The sum of all values of \( \theta \in [0, 2\pi] \) satisfying \( 2\sin^2\theta = \cos 2\theta \) and \( 2\cos^2\theta = 3\sin\theta \) is:
JEE Main - 2025
Mathematics
Trigonometric Equations
View Solution
Number of solutions of the trigonometric equation
\[ 2 \tan 2\theta - \cot 2\theta + 1 = 0 \quad \text{lying in the interval} \quad [0, \pi] \]
AP EAPCET - 2024
Mathematics
Trigonometric Equations
View Solution
View More Questions
Questions Asked in CUET PG exam
What is the correct verb form: He, as well as his friends, ?
CUET (PG) - 2025
Verbs
View Solution
Which preposition is correct: Chanakya lived ?
CUET (PG) - 2025
Prepositions
View Solution
Identify the possessive noun: My office car is parked elsewhere.
CUET (PG) - 2025
Nouns
View Solution
Which tense is appropriate: How did Saira ?
CUET (PG) - 2025
Tenses
View Solution
Complete the sentence: There is a growing synthesis between humanism and ?
CUET (PG) - 2025
Sentence Completion
View Solution
View More Questions