[" 12.If "log_(x)((9)/(16))=-(1)/(2)," then "x" is equal "],[" to "]

If log_(x)((9)/(16))=-(1)/(2), then x is equal to a.-(3)/(4) b.(3)/(4) c.(81)/(256)d.(256)/(81)

If log_(x)(256)=(8)/(5), then x is equal to (1)64(2)16(3)32

If log_(2)[log_(3)(log_(2)x)]=1 , then x is equal to

If log_(2)x xx log_(2)"" (x)/(16) + 4 = 0 , then x is equal to

If "log"_(2)x + "log"_(4)x + "log"_(16)x = (21)/(4) , then x equals to

If "log"_(2)x + "log"_(4)x + "log"_(16)x = (21)/(4) , then x equals to

If log_(sqrt(2)) sqrt(x) +log_(2)(x) + log_(4) (x^(2)) + log_(8)(x^(3)) + log_(16)(x^(4)) = 40 then x is equal to-

log_(sqrt(2))sqrt(x)+log_(2)x log_(4)(x^(2))+log_(8)(x^(3))+log_(16)(x^(4))=40 then x is equal to