If \( \alpha, \beta \) are the roots of the quadratic equation \( a x^{2}+b x+c=0 \) then \( \li...

Channel:
PW Solutions
Subscribers:
443,000
Published on ● Video Link: https://www.youtube.com/watch?v=zI-cTgt2x0A


Category:
Let's Play
Duration: 3:20
2 views
0

If \( \alpha, \beta \) are the roots of the quadratic equation \( a x^{2}+b x+c=0 \) then
\( \lim _{x \rightarrow \alpha} \frac{1-\cos \left(a x^{2}+b x+c\right)}{(x-\alpha)^{2}} \) equals :
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-06-09In the Rutherford scattering experiment, the number of alpha particles scattered at an angle \( ...
2023-06-09The horizontal range and maximum height attained by a projectile are \( \mathrm{R} \) and \( \ma...
2023-06-09Three charges are placed at the vertices of atn equilateral triangle of side a as shown in the f...
2023-06-09Prove that \( 3+2 \sqrt{5} \) is irrational.
2023-06-09Let \( f(n)=\sum_{k=-n}^{n}\left(\cot ^{-1} \frac{1}{k}-\tan ^{-1} k\right), k \neq 0 \). If the...
2023-06-09The volume (in \( \mathrm{mL} \) ) of \( 0.125 \mathrm{M} \mathrm{AgNO}_{3} \) required to quant...
2023-06-09Each phospholipid molecule in a cell membrane consists of
2023-06-09Let \( \alpha=\arcsin \frac{\sqrt{63}}{8} \) then the value of \( \sin ^{2}\left(\frac{\alpha}{4...
2023-06-09From the displacement-time graph of a cyclist given in the figure, find the average velocity i...
2023-06-09Which of the following compounds shall not produce propene by reaction with \( \mathrm{HBr} \) f...
2023-06-09If \( \alpha, \beta \) are the roots of the quadratic equation \( a x^{2}+b x+c=0 \) then \( \li...
2023-06-09span style=font-weight: 400;Prove that:/span span style=font-weight: 400; math xmlns=http://www....
2023-06-09A car, moving with a speed of \( 50 \mathrm{~km} / \mathrm{hr} \), can be stopped. by brakes aft...
2023-06-09The range of the function \( y=\log _{3}\left(5+4 x-x^{2}\right) \) is
2023-06-09A stone is projected from the ground with velocity \(50m/s\) at an angle of \({30}^{o}\). It cro...
2023-06-09If \( \tan \beta=\frac{n \sin \alpha \cos \alpha}{1-n \sin ^{2} \alpha} \), then show that \( \t...
2023-06-09By the reaction of carbon and oxygen, a mixture of \( \mathrm{CO} \) and \( \mathrm{CO}_{2} \) i...
2023-06-09A mixture of \( \mathrm{C}_{3} \mathrm{H}_{8} \) and \( \mathrm{O}_{2} \) having total volume \(...
2023-06-09In a capacitor of capacitance \( 20 \mu \mathrm{F} \) the distance between the plates is \( 5 \m...
2023-06-09An electron (charge \( =-e \) ) is placed at each of the eight corners of a cube of side \( a \)...
2023-06-09Solve the equation by factorisation : \[\frac{1}{7}(3 x-5)^{2}=28\]