`I f2^x=4^y=8^zand(1/(2x)+1/(4y)+1/(6z))=24/7,t h e nz=?7/48 b)48/7c)44/7}`

If2^(x)=4^(y)=8^(z) and ((1)/(2x)+(1)/(4y)+(1)/(6z))=(24)/(7), then z=?(7)/(48)b)(48)/(7)c)(44)/(7)}

If 2^(x)=4^(y)=8^(z) and ((1)/(2x)+(1)/(4y)+(1)/(6z))=(24)/(7) , then find the value of z.

(48)^(-(2)/(7))xx(16)^(-(5)/(7))xx(3)^(-(5)/(7))=?(1)/(3) b.(1)/(48)c1d.48

The value of k such that (x-4)/(1)=(y-2)/(1)=(z-k)/(2) lies in the plane 2x-4y+z=7 is (A) 7(B)-7(C) no real value (D) 4

Find the S.D. between the lines : (i) (x)/(2) = (y)/(-3) = (z)/(1) and (x -2)/(3) = (y - 1)/(-5) = (z + 4)/(2) (ii) (x -1)/(2) = (y - 2)/(3) = (z - 3)/(2) and (x + 1)/(3) = (y - 1)/(2) = (z - 1)/(5) (iii) (x + 1)/(7) = (y + 1)/(-6) = (z + 1)/(1) and (x -3)/(1) = (y -5)/(-2) = (z - 7)/(1) (iv) (x - 3)/(3) = (y - 8)/(-1) = (z-3)/(1) and (x + 3)/(-3) = (y +7)/(2) = (z -6)/(4) .

The coefficients of x^7 in the expansion of (1-x^4)(1+x)69 is (A) 27 (B) -24 (C) 48 (D) -48

If 3x-4y+z=7; 2x-z+3y=19 ; x+2y+2z=24 , then what is the value of z ? (a) 4 (b) 5 (c) 6 (d) 8

If (x)/(y)=(6)/(5), then the value of ((6)/(7)-(5x-y)/(5x+y)) is equal to (a) (1)/(7)( b) (2)/(7)(c)(3)/(7) (d) (4)/(7)

The line of intersection of the planes vecr.(3hati-hatj+hatk)=1 and vecr.(hati+4hatj-2hatk)=2, is (A) (x-6/13)/2=(y-5/13)/-7=z/-13 (B) (x-6/13)/2=(y-5/13)/7=z/-13 (C) (x-4/7)/-2=y/7=(z-5/7)/13 (D) (x-4/7)/-2=y/-7=(z+5/7)/13