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ICSE Class 10 Answered

ch matrices
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Asked by nilesh.dhote74 | 05 Apr, 2020, 08:07: PM
answered-by-expert Expert Answer
AB=I
So
B=A-1
Finding A-1
straight A equals open square brackets table row 1 2 row 1 3 end table close square brackets let open square brackets table row 1 2 row 1 3 end table close square brackets straight B equals open square brackets table row 1 0 row 0 1 end table close square brackets straight R subscript 2 rightwards arrow straight R subscript 2 minus straight R subscript 1 open square brackets table row 1 2 row 0 1 end table close square brackets straight B equals open square brackets table row 1 0 row cell negative 1 end cell 1 end table close square brackets straight R subscript 1 rightwards arrow straight R subscript 1 minus 2 straight R subscript 2 open square brackets table row 1 0 row 0 1 end table close square brackets straight B equals open square brackets table row 3 cell negative 2 end cell row cell negative 1 end cell 1 end table close square brackets straight B equals open square brackets table row 3 cell negative 2 end cell row cell negative 1 end cell 1 end table close square brackets
Answered by Arun | 06 Apr, 2020, 10:16: AM

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ICSE 10 - Maths
Compute:     open square brackets table row cell cos squared theta end cell 0 row cell c o t squared theta end cell 1 end table close square brackets plus open square brackets table row cell sin squared theta end cell 1 row cell negative cos e c squared theta end cell 0 end table close square brackets plus open square brackets table row 0 cell negative 1 end cell row cell negative 1 end cell 0 end table close square brackets.
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ICSE 10 - Maths
ch matrices
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Asked by nilesh.dhote74 | 05 Apr, 2020, 08:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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