if x equal to cos square theta and y equal to sin square theta then y2 at π/4 is?
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given x = cos²x.......(1)
y= sin²x....……(2)
At , π/4
y²= sin²π/4
= (1√2)²
= 1/2
adding (1)&(2),
x+y = sin²x+ cos²x
x+y= 1
x= 1-1/2
= 1/2
hence value of X and y is 1/2 & 1/2 respectively.
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