KAUN BANEGA COMMANDO Episode 9 | 9 PM | NDA 2 2021 , Airfoce X & Y Group | Navy SSR/AA | Doubtnut

Solve (9xy + 7 xy + 9x ^(2)) + ( 8 + x ^(2) - xy - y ^(2) + 1).

If f (x) is continous and fifferentiable in [-3,9] and f'(x) in [-2,8] AA x in (-3,9). Let N be the number of divisors of the greatest possible vaue of f (9)-f (-3), then the sum of digits of N.

Let the equation of circle is x^(2)+y^(2)=9 and the equation of the line is x+y=a AA a in N and makes the intercepts AB by the circle x^(2)+y^(2)=9. How many such intercepted portions are possible?

From an arbitrary point P on the circle x^2+y^2=9 , tangents are drawn to the circle x^2+y^2=1 , which meet x^2+y^2=9 at Aa n dB . The locus of the point of intersection of tangents at Aa n dB to the circle x^2+y^2=9 is x^2+y^2=((27)/7)^2 (b) x^2-y^2((27)/7)^2 y^2-x^2=((27)/7)^2 (d) none of these

If 4 x^(2) + 9y^(2) + z^(2) + 49 = 12 ( x+ y + z) , then what is the value of (4x + 9y - z) ?

If x = 6 and y=-2 then x-2y=9. The contrapositive of this statement is