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Deepak patra Asked a Question
February 6, 2022 3:43 pmpts 30 pts
Let a, b e R and f: R R be defined by f(z) =a cos(|a - al) +b|æ| sin (|+). Then f is (1) differentiable at a = 0 ifa =0 and b =1 (2) differentiable at r = 1 ifa =1 and b =0 (3) NOT differentiable at a = 0 if a = 1 and b = 0 (4) NOT differentiable at a = 1 ifa = 1 and b = 1
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  • Deepak singh 1 thankyou
    Refer attachment
    • cropped6093225584635382235.jpg
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    Deepak patra
    sir please check option a ... i think its differentiable ?????
    • cropped1925697872572308301.jpg