Gujarati
10-1.Circle and System of Circles
easy

वृत्त ${x^2} + {y^2} = {r^2}$ के बिन्दु $(a,b)$ पर स्पर्श रेखा का समीकरण $ax + by - \lambda  = 0$ है, जहाँ $\lambda $ है

A

${a^2}$

B

${b^2}$

C

${r^2}$

D

इनमें से कोई नहीं

Solution

(c) स्पर्षी $ax + by – {r^2} = 0$ होगी।

Standard 11
Mathematics

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