Prove that all real number `x, 2^x+3^x-4^x+6^x-9^x <= 1`

Prove that all real number x,2^(x)+3^(x)-4^(x)+6^(x)-9^(x)<=1

Prove that for all real values of x and y ,x^2+2x y+3y^2-6x-2ygeq-11.

Prove that for all real values of x and y ,x^2+2x y+3y^2-6x-2ygeq-11.

Let RR be the set of all real numbers and A={x in RR : 0 lt x lt 1} . Is the mapping f : A to RR defined by f(x) =(2x-1)/(1-|2x-1|) bijective ?

If x is a real number and |x| lt 3 , then

If x is a real number and |x| lt 3 , then

If denote the set of all real x for which (x^(2)+x+1)^(x) lt 1 , then S =

If denote the set of all real x for which (x^(2)+x+1)^(x) lt 1 , then S =

Prove that: (x-1) is a factor of 2x^4+9x^3+6x^2-11x-6

Given that,for all real x,the expression x^(2)+2x+4x^(2)-2x+4 values between which the expression (9.3^(2x)+6.3^(x)+4)/(9.3^(2x)-6.3^(x)+4) lies are