If `(x-1/x) = 10` then `x^2 + 1/(x^2) `= ?

If 1/2 x =10 , then x =

If x+(1)/(x)=4 and x^(2)+(1)/(x^(2))=10 the value of x-(1)/(x) is

If y = tan ^ (- 1) ((1) / (1 + x + x ^ (2))) + tan ^ (- 1) ((1) / (x ^ (2) + 3x + 3)) + tan ^ (- 1) ((1) / (x ^ (2) + 5x + 7)) then y '(0) = (i) - (3) / (10) (ii) - (5) / (10) (iii) - (7) / (10) (iv) - (9) / (10)

If x(3-x)<=2 then sin^(-1)(x)+sin^(-1)(x^(2))+......+sin^(-1)(x^(10))=

If x_1and \ x_2 are the solution of the equation x^(3log_10^3x-2/3log_(10)x)=100 root(3)10 then- a. x1x2=1 b. x1*x2=x1+x2 c. log_(x2)x1=-1 d. log(x_1*x_2)=0

If mean of x,2x+1,2x-1 is 10, then value of x is 2 4 6 3

The factor of x^8 + x^4 +1 are (A) (x^4 + 1 - x^2), (x^2 +1 +x), (x^2 + 1 - x ) (B) x^4 + 1 -x^2 , (x^2 - 1 + x), (x^2 +1 + x) (C ) (x^4 - 1 + x^2, (x^2 - 1 + x), (x^2 + 1 + x) (D) (x^4 -1 + x^2), (x^2 + 1 - x), (x^2 + 1 +x)