Question

a) Findl direetional derivative of Fat P in direetion ot u 6) /inc/ grade at ρ and marinum vatee ofdreocona Meri vative at ρ 2. Finl the equation of targent plane and equatcens of tanganey C-2,1,4) 3. Exomine fer the relalire entrema anel saddu points t. Finl the orea hon R using the doudle integra 7: 2 5, Sketeh the region of integraion, change the order of intigratien, no evecate yinx of the equatians x20 乙-O 7, Convert to poler and evaluate

Answer 1

7- DS 2 ㄦ

masimuum s vFl