Question

Please answer my question correctly and fastly

Answer 1

Answer:

i dont know the answer it is right

Answer 2

Step-by-step explanation:

Given :-

ysin²63° + ysin²27 / 4cos²17° +4cos²73° = -1/2

y {(sin²(90° -27°) + sin² 27°)/4( cos²17° +sin²(90°-17°)}

=> y(1)/4 = -1/2 , AS WE KNOW ,THAT Sin²¢ + cos²¢ = 1

=> y = -4/2 = -2 Answer .

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Hope it's helpful

#Rajukumar