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Classify all the critical point(s) of f(x,y)=e−(x2+y2) . Find maximum and minimum value(s) of f(x,y) .


Find the equation of the curve having y’ = 2x – 5 that passes through (5,4). 


Integrate the following function with respect to t

 

f(t) = 0,2e^−0.2t


a.− e^−0.2t + c


b. e^−0.2t + c


c.−o.4e^−0.2t


d.−o.4e^−0.2t + c



Evaluate the definite integral

                                                    

                    300

∫            ( 2,1 + 7 / 1000  T ) dT

                     150

 


a.551


b.300


c.150


d.450



Determine


∫ (x^3 − 2x^2  + 5x) dx


a.     x ^4 / 4 − 2^x3 / 3 + 5x^2 / 2 + c 


b.   x^4 / 4 − 3x^3 / 2 + 2x^2 / 5  + c


c.     x^4 / 4 − 2x^3 / 3 +2x^2 / 5  + c 


d.  x^4 / 4 − 3x^3 / 2 + 5x^2 / 2 + c  



Evaluate the following integral:

∫ 3x √ 1 − 2x^2 dx

 


a.    2 √ ( 1 + 2x^2 )^3 + c


b.   √ ( 1 + 2x^2 )^3 + c


c.    1 / 2 √ ( 1 + 2 x^2)^3 + c


d.   1 / 2  3√(1 + 2x^2 ) ^3 + c



Evaluate the following integral:

∫ √9x−5dx.

 


a.    1 / 6 √(9x−5) + c


b.   1 / 6 √(9x−5)^3 + c


c.    2 / 27 √ (9x−5) + c


d.   2 / 27 √ (9x - 5) ^3 + c



Evaluate the following integral:

∫ x ( x +  1 / x +  x^1 / 2) dx

 


a.    X^3 / 3  + 2 /5 √x^5 + c


b.   X^3 / 3 + x + 2 / 5  √ x^5 + c  


c.    X^2 + 1 + √x^3 + c 


d.   3x^3 + x + 5 / 2 √x^5 + c



Evaluate the following integral:

∫ [x 1 / 2 (√ x + 3√ x ^3) ] dx 

 


a.    X  + 2 / 3   x^3 / 2  + c 


b.   X ^ 2 / 2 + 2 / 5  x^5/2 + c


c.    X^2 / 2 + 5 / 2 x^ 5 / 2  + c 


d.   X  + x^ 3 / 2  + c



Determine the integral


∫ [(2x+2)e ^ x2+2x+3    + x^−1 / lnx ] dx


a.    e ^ x2+2x+3  +  ln|ln x| + c  


b.   e^ x2+2x+3 + ln|ln x| 


c.    e^x2+2x+3 – 1 / 2 [ln x] ^−2


d.   e^x2+2x+3 − 1 /2 [ln x]^ −2  + c



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