If `(x^2)/4+(y^2)/9=1,` then find the range of `2x+ydot`

Find the range of 4^(x)+2^(x)-1

Find the range of y= x/(1 + x^2)

If x in[-9,3) then find the range of x^(2)

Find the range of: y=sqrt(1-x^(2))

If x,y,z, in R such that x+y+z=4, x^2+y^2+z^2=6 then find the range of x.

If 4x^2+y^2=40\ a n d\ x y=6,\ find the value of 2x+ydot

If 4x^2+y^2=40 and x y=6, find the value of 2x+ydot

If f(x , y) satisfies the equation 1+4x-x^2=sqrt(9sec^2y+4cos e c^2y) then find the value of xtan^2ydot

If f(x , y) satisfies the equation 1+4x-x^2=sqrt(9sec^2y+4cos e c^2y) then find the value of xa n dtan^2ydot

If f(x , y) satisfies the equation 1+4x-x^2=sqrt(9sec^2y+4cos e c^2y) then find the value of xtan^2ydot