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It is pouring down rain and the amount o...

It is pouring down rain and the amount of rain hitting point `(x,y)` is given by ` f (x,y) =|x^(3)+2x ^(2)y- 5xy ^(2)-6y ^(3)|.` If Mr. 'A' starts at `(0,0),` find number of possible value (s) for 'm' such that y= mx is a line along which Mr.' A could walk without any rain falling on him.

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  13. Let f x = (ax+b)/(xa+d), where a,b,c d are non zero If f (7) =7,f (11)...

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  14. It is pouring down rain and the amount of rain hitting point (x,y) is ...

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  15. Let P (x) be a cubic polynomical with leading co-efficient unity. Let ...

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