Cx=4 18. If x=2005- (4) + sin(+ tan-'(13) and >= cos($sin"( sin ) ) then which of the following which of the following y= COS - sin statements holds good ? 51 (@) Y= cos B (b) y = cos 16 (c) x = 4cos-ly (d) none of these

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In ( b) quad y=cos (5 pi / 16) )

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