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Solution


Q.

f(x)=x3-x2f'(1)+xf''(2)-f'''(3), x∈R then which of the following is incorrect
1 f'(1)=3  
2 f'(3)=10  
3 f(0)=-6  
4 f''(2)=6  

Ans.

(2)

f'(1)=3-2a+b=a,  f''(2)=12-2a=b,  f'''(3)=6

∴  a=3, b=6