Question: code class = asciimath > If cos ^ ( 2 ) theta = ( 1 ) / ( 3 ) ( a ^ (

code class="asciimath">If cos^(2)\theta =(1)/(3)(a^(2)-1) and tan^(2)((\theta )/(2))=tan^((2)/(3))\alpha , then cos^((2)/(3))\alpha +sin^((2)/(3))\alpha =(A)2a^((2)/(3))(B)((2)/(a))^(213)(C)((2)/(a))^(2a)(D)2a^((1)/(3))
code class = "asciimath" > If cos ^ ( 2 ) \ theta

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