If `(a+1/a)=7` then `a^2+1/a^2=`

If x-1/3=7 then x^2+1/x^2=

If x+(1)/(x)=7 then x^(2)+(1)/(x^(2)) is equal to

If a - 1/a = 7 , find the value of a^2 + 1/a^2

The value of (4 1/7 - 2 1/4)/(3 1/2 + 1 1/7) div 1/(2+1/(2 + 1/(5 - 1/5))) .

From 9+x-(1)/(x)=7 evaluate x^(2)+(1)/(x^(2))

If A_1 and A_2 be the two .Ms between two numbers 7 and 1/7 then (2A_1-A_2)(2A_2-A_1)=

In the following questions, write 'T' for ture and 'F' for false statements. (2tan 7(1^@)/2((1-tan^2 7(1^@)/2))/(1+tan^2 7(1^@)/2)^2 =1

If alpha, beta are the roots of the equation x^(2)-7x+1=0 then value of {(1)/((alpha-7)^(2))+(1)/(beta-7)^(2))} - {((alpha^(2)+1)/(beta^(2)+1))+((beta^(2)+1)/(alpha^(2)+1))} is

If alpha, beta are the roots of the equation x^(2)-7x+1=0 then value of {(1)/((alpha-7)^(2))+(1)/(beta-7)^(2))} - {((alpha^(2)+1)/(beta^(2)+1))+((beta^(2)+1)/(alpha^(2)+1))} is