TS EAMCET · Maths · Trigonometric Ratios & Identities
If and then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
0<A<B<π4 cos(A+B)=1161 sin(A-B)=2425 Then sin2A+sin2B=? Now in right triangle cos(A+B)=1161 ⇒sin(A+B)=6061 ...1 sin(A-B)=2425 ⇒cos(A-B)=725 ...1 Now sin(2A)=sin((A+B)+(A-B))…
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 \(A+B+C+D=2 \pi\), then \(\cos A-\cos B+\cos C-\cos\) \(\mathrm{D}=\)TS EAMCET 2023 Medium
- If and are two non-collinear vectors, then representTS EAMCET 2020 Easy
- Let \(f(n)=A(-2)^n+B(-3)^n \forall A, B \in \mathbf{R}\) and \(n \in \mathbf{N}-\{1,2\}\). If \(f(n)+a f(n-1)+b f(n-2)=0\), then \((a+b)(b-a)=\)TS EAMCET 2020 Easy
- If \(\alpha, \beta, \gamma\) are real numbers such that \(\left(\frac{7}{3}+\beta\right) \bar{i}-\bar{j}+(\alpha+\gamma) \bar{k}=\frac{5}{3}(\alpha \bar{i}+\bar{j}-\bar{k})+\beta(2 \bar{j}+\bar{k})+(\bar{i}+\gamma \bar{j}+3 \bar{k}), \text { then } 5 \alpha-9 \beta+13 \gamma=\)TS EAMCET 2022 Easy
- If \(O A\) is equally inclined to \(O X, O Y\) and \(O Z\) and if \(A\) is \(\sqrt{3}\) units from the origin, then \(A\) is :TS EAMCET 2006 Easy
- The solution of isTS EAMCET 2021 Easy
More PYQs from TS EAMCET
- The quantum number which explains the line spectra observed as doublets in case of hydrogen and alkali metals and doublets and triplets in case of alkaline earth metals isTS EAMCET 2012 Medium
- A half spherical glass lens with refractive index 1.5 is placed in a liquid with refractive index of 1.3 (see following figure). The radius of the half spherical lens is \(10 \mathrm{~cm}\). A parallel beam of light travelling in the liquid is refracted by the glass lens. Then the absolute value of the position of the image from the centre of the glass lens will be
TS EAMCET 2018 Hard - Identify an antioxidant, an antiseptic, and an antibiotic respectively from the following:
Equanil Chloramphenicol Bithionol Aspartame Dimetapp Butylated hydroxytoluene TS EAMCET 2018 Hard - If the angles made by a straight line with the coordinate axes are \(\alpha, \frac{\pi}{2}-\alpha, \beta\), then \(\beta\) is equal toTS EAMCET 2011 Easy
- Particles of masses \(m, 2 m, 3 m, \ldots n m\) grams are placed on the same line at distance \(l, 2 l, 3 l \ldots n l\) \(\mathrm{cm}\) from a fixed point. The distance of centre of mass of the particles from the fixed point in centimetre isTS EAMCET 2002 Easy
- Assertion (A) : pKa of phenol is 4.19 and that of benzoic acid is 10 Reason (R) : Phenoxide ion is stabilised by nonequivalent resonance structures whereas benzoate ion by two equivalent resonance structures The correct option among the following isTS EAMCET 2023 Medium