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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)`

Text Solution

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The correct Answer is:
B, C
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