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If I=[{:(,1,0),(,0,1):}], J=[{:(,0,1),(,...

If I=`[{:(,1,0),(,0,1):}], J=[{:(,0,1),(,-1,0):}]and B=[{:(,cos theta,sin theta),(,-sin theta,cos theta)]:}"then B"=`

A

`Icos theta+J sin theta`

B

`Icostheta-Jsintheta`

C

`I sin theta+Jcos theta`

D

`-Icos theta+Jsin theta`

Text Solution

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The correct Answer is:
A
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