Question

please tell 1 answer urgently....​

Answer 1

Answer:

b) 3

Step-by-step explanation:

x=2 sin²Ф

y=2 cos²Ф + 1

x+y=2 sin²Ф + 2 cos²Ф + 1

     =2(sin²Ф + cos²Ф) +1

     =2+1

     =3

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Answer 2

hope it helps you......