TS EAMCET · Maths · Trigonometric Equations
The value of , when is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Given, 1-cosθ1+cosθ1+cot2θ, when θ=π15 =1-cos2θ1+cot2θ Putting θ=π15 =1-cos2π151+cot2π15 =sin2π15.cosec2π15 =sin2π15×1sin2π15 =1
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- If the latus rectum of a hyperbola subtends an angle of at the other focus, then the eccentricity of the hyperbola isTS EAMCET 2021 Medium
- If \(A_i(i=1,2,3, \ldots, n)\) are \(n\) independent events with \(P\left(A_i\right)=\frac{1}{1+i}\) for each \(i\), then the probability that none of \(A_i\) occurs isTS EAMCET 2010 Easy
- The probability distribution of a random variable \(X\) is given below
The variance of \(X\) isTS EAMCET 2017 Medium - Let \(\mathbf{x}=\hat{\mathbf{i}}+\hat{\mathbf{j}}\) and \(\mathbf{y}=3 \hat{\mathbf{i}}-2 \hat{\mathbf{k}}\). Then, the vector \(\mathbf{r}\) of magnitude \(\sqrt{21}\) satisfying \(\mathbf{r} \times \mathbf{x}=\mathbf{y} \times \mathbf{x}\) and \(\mathbf{r} \times \mathbf{y}=\mathbf{x} \times \mathbf{y}\), isTS EAMCET 2019 Easy
- If \(\mathrm{t}\) is parameter, \(\mathrm{A}=(\mathrm{a} \sec \mathrm{t}, \mathrm{b} \tan \mathrm{t}), \mathrm{B}=(-\mathrm{a} \tan \mathrm{t}, \mathrm{b} \sec \mathrm{t})\) and \(\mathrm{O}=(0,0)\) then the locus of the centroid of \(\triangle \mathrm{OAB}\) isTS EAMCET 2023 Medium
- \(\int_0^{\pi / 2} \frac{d x}{4+5 \sin x}\)TS EAMCET 2020 Hard
More PYQs from TS EAMCET
- TS EAMCET 2022 Easy
- If \(C_1\) and \(C_2\) are the centres of similitude with respect to the circles \(x^2+y^2+6 x+8 y+24=0\) and \(x^2+y^2-6 x-8 y\) \(+9=0\) then \(C_1 C_2=\)TS EAMCET 2022 Medium
- A six-faced unbiased die is thrown twice and the sum of the numbers appearing on the upper face is observed to be 7 . The probability that the number 3 has appeared atleast once, isTS EAMCET 2014 Medium
- \(\lim _{x \rightarrow \infty}\left(\frac{x+6}{x+1}\right)^{x+4}\) is equal toTS EAMCET 2012 Medium
- In \(\triangle A B C\) if \(\angle C=\frac{\pi}{2}\) then
\(\tan ^{-1}\left(\frac{a}{b+c}\right)+\tan ^{-1}\left(\frac{b}{c+a}\right)+\tan ^{-1}\left(\frac{c}{a+b}\right)=\)TS EAMCET 2020 Hard - The logic operation performed by the following circuit is
TS EAMCET 2018 Easy