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If f(x)={[(1-sin^2x)/(3cos^2x),xltpi/(2)...

If `f(x)={[(1-sin^2x)/(3cos^2x),xltpi/(2)],[a,x=pi/2],[(b(1-sinx))/((pi-2x)^2),x gtpi/2]}` then f(x) is continuous at `x=pi/2`,if
(a)`a=1/3,b=2` (b) `a=1/3,=8/3` (c)`a=2/3,b=8/3` (d) none of these

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