find the adjoint and Inver [cosasina
sina cosa]
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1
Answer:
The adjoint matrix of [
cosα
sinα
−sinα
cosα
] is [
cosα
−sinα
sinα
cosα
]
The determinant of given matrix is cos
2
α+sin
2
α=1
Therefore the inverse matrix will be [
cosα
−sinα
sinα
cosα
]
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