Question

If X=2sin²Φ and Y=2cos²Φ l, then find X+Y​

Answer 1

Answer:

X = 2sin²Φ, Y = 2cos²Φ

X + Y = sin²Φ + cos²Φ + sin²Φ + cos²Φ

X + Y = 1 + 1 (sin²Φ + cos²Φ = 1 [property])

X + Y = 2

Answer 2

Answer:

x+y=2

it is a right answer....