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Maths-

General

Easy

Question

If E ( $theta$ ) = $open square brackets table row cell cos invisible function application theta end cell cell sin invisible function application theta end cell row cell negative sin invisible function application theta end cell cell cos invisible function application theta end cell end table close square brackets$ then E( $alpha$ ) E( $beta$ ) is equal to-

E (0°)
E ( $α$ $β$ )
E ( $α$ + $β$ )
E ( $α$ – $β$ )

The correct answer is: E ( $alpha$ + $beta$ )

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