Why sine wave is used as a radio waves why not cos waves ?

Hello friends,
It's my second thread on entc section.
We all know that sine waves are used as a radio waves.But i want to know that why sine waves why not cos wave anyone have idea about this.
😁

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  • silverscorpion

    silverscorpion

    @silverscorpion-iJKtdQ • Jul 11, 2010

    cos waves are the same as sine waves, because cos x is equal to sin 90-x;
    So, cos x is nothing but a phase shifted version of sin x.

    So, there is nothing called a 'cos wave', per se. Only phase shifted sine wave.
    And, all phase variations of the normal sine wave are also called sine waves only.

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