If a=1, b=8, c=15, find the value of `b^(2)-4ac`.

If a=2,b= -11 , c = 15 , find the value of b^(2)- 4ac .

If a=(1)/(2),b=3 and c=1 then find the value of b^(2)-4ac

If a = 4, b = -5, c = -8, find the value of (a+b) times c .

If a= 5, b= 4, c=8 then find the value of (a^(3) + b^(3) + c^(3)-3abc)//(ab+ bc+ ca- a^(2) -b^(2)-c^(2)) A 15 B 17 C -17 D -15

a+b=8 and ab=15 then find the value of a&b

If (a)/(b)=(4)/(5) and (b)/(c)=(15)/(16), find the value of (c^(2)-a^(2))/(c^(2)+a^(2))

In DeltaABC, a=4, b=6, c=8 , then find the value of 8 cos A + 16 cos B + 4 cos C .

If the points A(-1, -4) , B(b,c) and C(5,-1) are collinear and 2b + c = 4 , find the values of b and c.

If a,b , c are in AP, then, find the value of (a-c)^2/(b^2-ac)

If a:b=3:1 and b:c=5:1 , then find the value of ((a^3)/(15b^2c))^3