If `a : b=b : c ,\ t h e n\ a^4: b^4` would be equal to `a c : b^2` b. `a^2: c^2` c. `c^2: a^2` d. `b^2: a c`

If a:b=b:c,(:thenbackslash a^(4):b^(4) would be equal to ac:b^(2) b.a^(2):c^(2) c.c^(2):a^(2) d.b^(2):ac

If a : b=3:4, b : c4:7, t h e n(a+b+c)/c is equal to 1 b. 2 c. 3 d. 7

If a :(b+c)=1:3 a n d c :(a+b)=5:7, t h e b :(a+c) is equal to 1:2 b. 1:3 c. 2:3 d. 2:1

In a A B C if b+c=3a ,t h e ncotB/2dotcotC/2 has the value equal to: 4 b. 3 c. 2 d. 1

In a triangle A B C , right angled at C ,t a n A+t a n B is equal to a. a+b b. (c^2)/(a b) c. (a^2)/(b c) d. (b^2)/(a c)

If a+b+c=0,a^2+b^2+c^2=4,t h e na^4+b^4+c^4 is_____.

If a+b+c=0,a^2+b^2+c^2=4,t h e na^4+b^4+c^4 is_____.

If a+b+c=0,a^2+b^2+c^2=4,t h e na^4+b^4+c^4 is_____.