a curve is given by \( x=a \cos t+\frac{b}{2} \cos 2 t \) and \( y=a \sin t+\frac{b}{2} \sin 2 t... VIDEO
a curve is given by \( x=a \cos t+\frac{b}{2} \cos 2 t \) and \( y=a \sin t+\frac{b}{2} \sin 2 t \), then the points for which \( \frac{d^{2} y}{d x^{2}}=0 \) are given by
(A) \( \sin t=\frac{2 a^{2}+b^{2}}{3 a b} \)
(B) \( \cos t=-\frac{a^{2}+2 b^{2}}{3 a b} \)
(C) \( \tan t=a / b \)
(D) none of these
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live
Other Videos By PW Solutions 2022-11-16 M osses do not have 'true leaves' because their leaf-like structures lack
(A) starch in their ch... 2022-11-16 A spaceship is moving away from Earth at speed \( 0.333 c \).
A source on the rear of the ship e... 2022-11-16 Period of \( f(x)=\cos (|\sin x|-|\cos x|) \) is
(A) \( \pi \)
(B) \( 2 \pi \)
(C) \( \frac{\pi}... 2022-11-16 Answer each of the following questions in one word or one sentence or as per exact requirement o... 2022-11-16 Which is a dinucleotide? (A) RNA (B) ADP (C) DNA (D) NAD 2022-11-16 Two particles \( A \) and \( B \) are thrown simultaneously from two different floors of tower h... 2022-11-16 \( \mathrm{C}_{5} \mathrm{H}_{12} \mathrm{O} \) рдЖрдгреНрд╡рд┐рдХ рд╕реВрддреНрд░ рд╡рд╛рд▓реЗ рдРрд▓реНрдХреЛрд╣реЙрд▓реЛрдВ рдХреЗ рд╕рднреА рд╕рдорд╛рд╡рдпрд╡реЛрдВ рдХреА ... 2022-11-16 I dentify the kind of phyllotaxy shown in the given figures \( A, B \), and \( C \).
(A) A-Alter... 2022-11-16 How can you prove that DNA replication is semi-conservative? 2022-11-16 If in a group of \( n \) distinct objects, the number of arrangements of 4 objects is 12 times t... 2022-11-16 a curve is given by \( x=a \cos t+\frac{b}{2} \cos 2 t \) and \( y=a \sin t+\frac{b}{2} \sin 2 t... 2022-11-16 Problem related to \( \mathrm{Rh} \) factor arises when \( \mathrm{Rh}^{+} \)and \( \mathrm{Rh}^... 2022-11-16 A rectangular loop \( \left(\right. \) area \( \left.=0.15 \mathrm{~m}^{2}\right) \) turns in a ... 2022-11-16 If a plane passes through the point \( (1,1,1) \) and is perpendicular to the line \( \frac{x-1}... 2022-11-16 рдЙрд╕ рд░реЗрдЦрд╛ рдХрд╛ рд╕рдореАрдХрд░рдг рдЬреНрдЮрд╛рдд рдХреАрдЬрд┐рдП, рдЬрд┐рд╕рдХреА рдореВрд▓рдмрд┐рдиреНрджреБ рд╕реЗ рд▓рд╛рдореНрдмрд┐рдХ рджреВрд░реА \( \sqrt{2} \) рдорд╛рддреНрд░рдХ рдФрд░ рдореВрд▓рдмрд┐рдиреНрдж... 2022-11-16 In Fig. 5(Q).11, when we ignore friction and mass of pulley, what would be the accelerations of ... 2022-11-16 If \( f(x)=\sin x+\tan \frac{x}{2}+\sin \frac{x}{2^{2}}+\tan \frac{x}{2^{3}}+\ldots+\sin \frac{x... 2022-11-16 рд╣реЙрдлрдореИрди рд╣рд╛рдЗрдкреЛрдмреНрд░реЛрдорд╛рдЗрдЯ рдкреНрд░рддрд┐рдХреНрд░рд┐рдпрд╛ рдПрдХ рд╡рд┐рдзрд┐ рдкреНрд░рджрд╛рди рдХрд░рддреА рд╣реИ :
(A) рдПрдХ рддреГрддреАрдпрдХ рдРрдореАрди рдмрдирд╛рдиреЗ рдХреА
(B) рдРрдореАрдиреЛрдВ... 2022-11-16 \( x=2+2^{2 / 3}+2^{1 / 3} \), then the value of \( x^{3}-6 x^{2}+6 x \) 2022-11-16 Give brief account on metamorphosis in insects. 2022-11-16 If \( I=\int(\sqrt{\cot x}-\sqrt{\tan x}) d x \), then \( I \) equals
(A) \( \sqrt{2} \log (\sqr...