If `(a+b)/c=(b+c)/a=(c+a)/b=k ,\ t h e n\ k` is equal to `0` b. `1` c. `2` d. `a+b+c`

If (a+b)/(c)=(b+c)/(a)=(c+a)/(b)=k, then k is equal to 0 b.1 c.2 d.a+b+c

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

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 x=log_(k)b=log_(b)c=(1)/(2)log_(c)d, then log_(k)d is equal to

If (sinx)/a=(cosx)/b=(tanx)/c=k , then b c+1/(c k)+(a k)/(1+b k) is equal to

If (sinx)/a=(cosx)/b=(tanx)/c=k , then b c+1/(c k)+(a k)/(1+b k) is equal to k(a+1/a) (b) 1//k(a+1/a) 1/(k^2) (d) a/k

If (sinx)/a=(cosx)/b=(tanx)/c=k , then b c+1/(c k)+(a k)/(1+b k) is equal to k(a+1/a) (b) 1//k(a+1/a) 1/(k^2) (d) a/k

If (sinx)/a=(cosx)/b=(tanx)/c=k , then b c+1/(c k)+(a k)/(1+b k) is equal to k(a+1/a) (b) 1//k(a+1/a) 1/(k^2) (d) a/k

If x=(log)_k b=(log)_b c=1/2(log)_c d ,t h e n(log)_k d is equal to 6x b. (x^3)/2 c. 2x^3 d. 2x^8