Math, asked by anitayadavyadav472, 8 months ago

फीवर एक्सेस पायलट बाय एंड सैड इस परपेंडिकुलर टू बाय फाइंड द वैल्यू ऑफ पी ​

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Answered by siddharth3690
1

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Given equation is 12x2+7xy−py2−18x+9q+6=0

We know that for it to represent a pair of ⊥ lines, coeff. of x2 + coeff. of y2=0

⇒12−p=0⇒p=12

And also, a=12,h=27,b=−p=−12,g=−9,f=2q, abc+2fgh−bg2−af2−ch2=0⇒q=1 or q=−223

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