|(cos alpha, sin alpha, cos (alpha+beta)...

`|(cos alpha, sin alpha, cos (alpha+beta)),(- sin alpha, cos alpha, -sin (alpha + beta)),(1,1,1)|=`

`1+sin alpha+cos alpha`

`1+sin beta+cos beta`

`1+ sin alpha-cos alpha`

`1+sin beta-cos beta`

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DIPTI PUBLICATION ( AP EAMET)-MATRICES-EXERCISE 1B MCQ (DETERMINANTS)

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