find the value of 2*3-4 ?

If x=(3/2)^2xx(2/3)^-4 find the value of x^-2

If A = {2,3,4,5} B = {2,4,6,8} then find the value of A-B.

Find the values of 2^4, 2^3 and 2^7 and verify whether 2^4 xx 2^3 = 2^7 .

If x^2-4x+3=1 then find the value of x.

If 3x - 4y + k = 0 is a tangent to x^(2) - 4y^(2) = 5 find the value of k.

IF 2y-p^2 x=3 and 2y-(4px+1)=0 are parallel find the value of p.

If x=(5)/((2!).3)+(5.7)/((3!).3^(2))+(5.7.9)/((4!).3^(3))+…. then find the value of x^(2)+4x.

m["-3 4"]+n["4 -3"]=["10 -11"] find the value of 3m+7n .

If 3sin A + 4 cos A = 5 , then find the value of 4 sin theta - 3 cos theta .

The area of the triangle is 18 sq.units, whose vertices are (3 , 4) , (- 3 , -2) and (p , -1), then find the value of 'p' .