`x/5-y/3=9/15; x/2-y/9=7/18`

Solve the equation. 1.6 = y/15 , (2x)/3=18 , 7x-9=16

Fill in the blanks of the following: x/7=y/3=(3x+5y)/………=(7x-9y)/…….

Find the values of 7x -5y = 9 , 5x-7y = -15

Measure of angle between the planes 5x-2y + 3z-7=0 and 15x - 6y+9z+5=0 is

Find the magnitude and equation of the line of shotest distance between the lines (x-3)/2=(y+15)/-7=(z-9)/5 and (x+1)/2=(y-1)/1=(z-9)/-3

If x=9 is the chord of contact of the hyperbola x^2-y^2=9 then the equation of the corresponding pair of tangents is (A) 9x^2-8y^2+18x-9=0 (B) 9x^2-8y^2-18x+9=0 (C) 9x^2-8y^2-18x-9=0 (D) 9x^2-8y^2+18x+9=0

If x=9 is the chord of contact of the hyperbola x^(2)-y^(2)=9 then the equation of the corresponding pair of tangents is (A)9x^(2)-8y^(2)+18x-9=0(B)9x^(2)-8y^(2)-18x+9=0(C)9x^(2)-8y^(2)-18x-9=0(D)9x^(^^)2-8y^(^^)2+18x+9=0'

If x=9 is the chord of contact of the hyperbola x^2-y^2=9 then the equation of the corresponding pair of tangents is (A) 9x^2-8y^2+18x-9=0 (B) 9x^2-8y^2-18x+9=0 (C) 9x^2-8y^2-18x-9=0 (D) 9x^2-8y^2+18x+9=0

If x=9 is the chord of contact of the hyperbola x^2-y^2=9 then the equation of the corresponding pair of tangents is (A) 9x^2-8y^2+18x-9=0 (B) 9x^2-8y^2-18x+9=0 (C) 9x^2-8y^2-18x-9=0 (D) 9x^2-8y^2+18x+9=0