MONOTONICITY

if x is increasing at the rate of 2cm/s at the instant when x=3cm and y=1cm ,at what rate y must be changing in order that the quantity (2xy-3x^2y)shall neither be increasing nor decreasing ....

if S={(a,b)εR*R:x=a,y=b,(2xy-3x^2y)=constant→dy/dx>0}

S'={(x,y)εA*B:-1≤A≤B AND -1≤B≤1}

find the area S∩S'

5 Answers

24
eureka123 ·

why has this been given ???

S={(a,b)εR*R:x=a,y=b,(2xy-3x^2y)=constant→dy/dx>0}

S'={(x,y)εA*B:-1≤A≤B AND -1≤B≤1}

some expert plz reply

24
eureka123 ·

anyone ??

24
eureka123 ·

??

11
Mani Pal Singh ·

S is not given in the question
so T.S missed another question and mistakenly wrote it.
The question is
if x is increasing at the rate of 2cm/s at the instant when x=3cm and y=1cm ,at what rate y must be changing in order that the quantity (2xy-3x^2y)shall neither be increasing nor decreasing ....

1
abhishek sahoo ·

its correct

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