`6598-2401+2281-516=?`

5603-2281+210-1472=?

If for a graph plotted between frequency of deflected X-ray beam and atomic number of the target metal (sqrtv and Z) gives a straight line with slope and intercept both as unity, then what will be the atomic number of the target metal if the observed frequency of X-rays is 2401 sec^(-1) ?

If 7^(n)=2401 , then 7^(n-5)=

{:(7,6,49,36,2401,1296),(9,"(a)","(b)","(c)", " (d)"," (e)"):} What will come in place of (e) ?

Following questions are based on the five three digit numbers given below: 518 725 849 387 634 If the positions of the second and the third digits in each of the numbers are interchanged, which of the following will be the difference between the highest and the lowest number after the rearrangement? 1) 506 2) 526 3) 416 4) 516 5) None of these

If int x^(1/3)[1 + x^(1/3) +x^(2/3)][2x^(2/3) + 3x^(1/3) + 6]^3 dx=f(x) + c(x>0), where f(0)=0 then the of f(-1) is equal to (A) 81/8 (B) 1296/8 (C) 625/8 (D) 2401/8

The value of [[(2401)^(-1//2)]^(-1//4)]^(2) is