Question

404
Ex. 15. Find the envelopes of circles described on the rad
following curves as diameters:
(a) Vr= 1 + e cos e
(b) = a cos 30
(c) rcos" (0/n) = a.
Sol. a
(a). For figure see Ex. 12. Let P (OP. a) be any poi​

Answer 1

Answer:

b number is the answer of this question