The value of `D^n(ax+b)^m` is equal to

If .^(m+n)P_(2)=90 and .^(m-n)P_(2)=30 , find the value of m and n is equal to.

If tantheta+sintheta=m and tantheta-sintheta=n , then the value of m^2-n^2 is equal to (a)4 mn (b) 2sqrt(mn) (c) 4sqrt(mn) (d) 2sqrt(m//n)

If the plane ax – by + cz = d contains the line (x – a)/a = (y – 2d)/b = (z – c)/c, then the value of (b/4d) is equal to (b, d ne 0)

If the plane ax-by+cz=d contains the line (x-a)/(a)=(y-2d)/(b)=(z-c)/(c ) , then the value of (b)/(4d) is equal to (b, d ne 0)

If 2-i is a root of the equation ax^2+12x+b=0 .then the value of ab is equal to a)45 b)15 c)-15 d)-45

The value of (a+i b)^(m / n)+(a-i b)^(m / n) is equal to

Let M=[(a,b,c),(d,e,f),(1,1,1)] and N=(M^(2))/(2) . If (a-b)^(2)+(d-e)^(2)=36, (b-c)^(2)+(e-f)^(2)=64, (a-c)^(2)+(d-f)^(2)=100 , then value of |N| is equal to

In the expansion of (ax+b)^(2020) , if the coefficient of x^(2) and x^(3) are equal, then the value of (9)/(100)((b)/(a)) is equal to

In the expansion of (ax+b)^(2020) , if the coefficient of x^(2) and x^(3) are equal, then the value of (9)/(100)((b)/(a)) is equal to