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6(4^(x)+9^(x))=13.6^(x)...

`6(4^(x)+9^(x))=13.6^(x)`

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Knowledge Check

  • If f(x) = x^(3) - 6x^(2) + 9x +3 be a decreasing function, then x lies in-

    A
    (1, 3)
    B
    `( - oo, -1) cup (3, oo) `
    C
    `(3, oo)`
    D
    none of these
  • The correct value of the parameter t of the identity 2(sin ^(6)x + cos ^(6) x)+t (sin ^(4)x+ cos ^(4)x)=-1 is-

    A
    `-3`
    B
    3
    C
    1
    D
    `-1`
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