1.

Assertion (A) : The matrix [(cosalpha,sinalpha),(-sinalpha,cosalpha)]is an orthogonal matrix. Reason (R) : If A is an orthogonal matrix then A A^(T)=A^(T)A=I

Answer»

Both A and R are TRUE and R is the CORRECT EXPLANATION of A
Both A and R are true R is not correct explanation of A
A is true R is FALSE
A is false R is true

Answer :A


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