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Question Number 47939 by rahul 19 last updated on 17/Nov/18

Commented by rahul 19 last updated on 17/Nov/18

$h o w t o d r a w t h i s g r a p h ?$ $s t e p s p l s s$
Commented by rahul 19 last updated on 17/Nov/18

$T h e {e q}^{n} i s s a t i s f i e d b y o r i g i n (0, 0)$ $b u t s t i l l t h e g r a p h d o e s n o t p a s s t h r o u g h$ $i t . w h y ? ?$
	Answered by mr W last updated on 17/Nov/18

	$p o i n t (0, 0) i s a l s o a p a r t o f t h e d i a g r a m .$ $r^{4} = 2 r^{2} (3 \cos^{2} θ + \sin^{2} θ) = 2 r^{2} (2 + \cos 2 θ)$ $\Rightarrow r = 0 \Rightarrow t h i s p o i n t (0, 0)$ $\Rightarrow r = \sqrt{2 (2 + \cos 2 θ)} \Rightarrow t h i s i s t h e p e a n u t c u r v e$
	Commented by rahul 19 last updated on 17/Nov/18
	thanks sir.
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