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If tan x= (2b)/(a-c), a!=c, y = a cos^2 ...

If `tan x= (2b)/(a-c), a!=c, y = a cos^2 x +2b sin x*cos x + c sin^2x, z = a sin^2 x-2b sin x*cos x + c cos^2x,` then

A

`y = z`

B

`y - z = a + c`

C

`y - z = a - c`

D

`y - z = (a - c)^(2) + 4b^(2).`

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The correct Answer is:
C
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