If f : R \to R is defined by f(x) = \{ \table \frac{2 \sin x-\sin 2 x}{2 x \cos x} ,{ \if }, x \neq 0;\alpha,\if,x=0 then the value of \alpha so that is continuous at x=0 isf' is continuous at x=0 is

AP and TS EAMCET Engineering Model Paper 2

Question : 34 of 160

Marks: +1, -0

If f:R→R is defined by f(x)= {

2‌sin‌x−sin‌2‌x

2x‌cos‌x

x≠0

x=0

then the value of α so that ′f′ is continuous at x=0 is

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