From the point , two rays are sent making angles of 45° with the line . These rays get reflected from the mirror . If the equations of the reflected rays are and , , then the value of is

From the point , two rays are sent making angles of 45° with... — JEE PYQs | Mockzy

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From the point

(- 1, - 1)

, two rays are sent making angles of 45° with the line

x + y = 0

. These rays get reflected from the mirror

x + 2 y = 1

. If the equations of the reflected rays are

a x + b y = 9

and

c x + d y = 7

a, b, c, d \in Z

, then the value of

a d + b c

Let and . Then the number of elements, in the relation divides

If , the is equal to

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