If A=[{:(costheta,sintheta),(-sintheta,...

If `A=[{:(costheta,sintheta),(-sintheta,costheta):}]`, then prove that `A^(n)=[{:(cosntheta,sinntheta),(-sinntheta,cosn theta):}], n inN`.

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USHA PUBLICATION-MATRICES DETERMINANTS PROBABILITY -EXERCISE

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