`sqrt(1+(55)/(729))=1+x/(27)` , then the value of `x` is (a) 1 (b) 3 (c) 5 (d) 7

If x=(7+5sqrt(2))^(1/3) -1/((7+5sqrt(2))^(1/3) , then the value of x^3+3x-14 is equal to 1 (b) 0 (c) 2 (d) 4

If 8^(x+1)=64, what is the value of 3^(2x+1)?1 (b) 3 (c) 9 (d) 27

If sqrt(1+(x)/(169))=(14)/(13), then x is equal to (a) 1 (b) 13(c)27 (d) None of these

If 8^(x+1)=64 , what is the value of 3^(2x+1) ? (a)1 (b) 3 (c) 9 (d) 27

If (2+(1)/(3(4)/(5)))/(2+(1)/(3+(1)/(4)))=x, then the value of x is (1)/(7) (b) (3)/(7)(c)1(d)(8)/(7)

If x^2 + frac(1)(x^2) =7 , then the values of x + frac(1)(x) is (A) 2 (B) 3 (C ) 5 (D) 6

If x=root(3)(7+5sqrt(2))-(1)/(root(3)(7+5sqrt(2))), then the value of x^(3)+3x-14 is equal to 1(b)0(c)2 (d) 4

The equation of the tangent to the curve sqrt( (x)/( a)) + sqrt((y)/( b)) = 1 at the point (x_1, y_1) is (x)/( sqrt(ax_1) ) + (y)/( sqrt(by_1) )=k . Then, then value of k is a)2 b)1 c)3 d)7

If (x+(1)/(x))=sqrt(13), then the value of (x^(3)-(1)/(x^(3))) is (a) 26( b) 27(c)30(d)36

If A = [[x,1,-x],[0,1,-1],[x,0,7]] and det (A) = |(3,0,1),(2,-1,0),(0,6,7)| , then the value of x is a)-3 b)3 c)2 d)-8