JamellaJ337931 JamellaJ337931

26-10-2022
Mathematics

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Write as a single function of asingle angle.cos 20° cos 30° + sin 20° sin 30º = ?

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ViyanV747079 ViyanV747079

26-10-2022

Consider the trigonometric formula,

[tex]\begin{gathered} \cos A=\sin (90-A) \\ \sin A=\cos (90-A) \end{gathered}[/tex]

The expression is given as,

[tex]undefined[/tex]

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