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Question

The value of sin1(sin12)cos1(cos12)=

A
0
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B
π
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C
8π+24
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D
8π24
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Solution

The correct option is A 0
sin1(sin12)cos1(cos12)
=cos11sin212cos1(cos12) since sin1x=cos11x2
=cos1(cos12)cos1(cos12)=0

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