If \( \{\sin (\alpha-\beta)+\cos (\alpha+2 \beta) \sin \beta\}^{2}=...

Channel:
PW Solutions
Subscribers:
453,000
Published on ● Video Link: https://www.youtube.com/watch?v=kNcaJ4E0_xk


Duration: 7:25
11 views
0

If \( \{\sin (\alpha-\beta)+\cos (\alpha+2 \beta) \sin \beta\}^{2}=4 \cos \alpha \sin \beta \sin (\alpha+\beta) \). Then, prove that \( \tan \alpha+\tan \beta=\frac{\tan \beta}{(\sqrt{2} \cos \beta-1)^{2}} \);
P \( \alpha, \beta \in(0, \pi / 4) \)

W
\( \sin (\alpha-\beta)- \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-02-16A thin rod of length \( L \) and uniform cross-section is pivoted a...
2023-02-16Resolve \( z^{5}+1 \) into linear and quadratic factors with real \...
2023-02-16\( \mathrm{P} \) Sodium loses its lustre on exposure to air due to ...
2023-02-16How much \( \mathrm{AgBr} \) could dissolve in \( 1.0 \mathrm{~L} \) of \( 0.40 \mathrm{M} \math...
2023-02-16The correct order of \( \mathrm{H}-M-\mathrm{H} \) bonds angle is : (a) \( \mathrm{NH}_{3}\mathr...
2023-02-16Determine all the values of \( x \) in the interval \( x \in[0,2 \p...
2023-02-16\( \mathrm{f}[\sin x]+[\sqrt{2} \cos x]=-3, x \in[0,2 \pi] \), (whe...
2023-02-16P The increasing order of solubility is W (A) \( \mathrm{CaCO}_{3} ...
2023-02-16Which pair of molecules are polar species? (a) \( \mathrm{CO}_{2} \) and \( \mathrm{H}_{2} \math...
2023-02-16If \( m \sin (\alpha+\beta)=\cos (\alpha-\beta) \), prove that \[ \...
2023-02-16If \( \{\sin (\alpha-\beta)+\cos (\alpha+2 \beta) \sin \beta\}^{2}=...
2023-02-16A uniform disc of mass \( m \) and radius \( R \) is projected hori...
2023-02-16If \( 2(\cos (\alpha-\beta)+\cos (\beta-\gamma)+\cos (\gamma-\alpha...
2023-02-16Which of the following compound is planar and non-polar ? (a) \( \mathrm{XeO}_{4} \) (b) \( \mat...
2023-02-16Dipole moment of \( \mathrm{NF}_{3} \) is smaller than : (a) \( \mathrm{NH}_{3} \) (b) \( \mathr...
2023-02-16Passage 2 P W centre of mass about an axis, and (ii) its motion abo...
2023-02-16A uniform circular disc of mass \( 1.5 \mathrm{~kg} \) and radius \...
2023-02-16Which of the following molecules will have polar bonds but zero dipole moment? (a) \( \mathrm{O}...
2023-02-16Prove that \( \tan 82 \frac{1}{2}^{\circ}=(\sqrt{3}+\sqrt{2})(\sqrt...
2023-02-16(This section contains 11 questions. Each question contains Stateme...
2023-02-16If \( A=\sin 44^{\circ}+\cos 44^{\circ}, B=\sin 45^{\circ}+\cos 45^...


Tags:
pw