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Question

∣ ∣cosCtanA0sinB0tanA0sinBcosC∣ ∣ has the value

A
0
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B
1
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C
sinAsinBcosB
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D
none of these
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Solution

The correct option is A 0
∣ ∣cosCtanA0sinB0tanA0sinBcosC∣ ∣

=cosC(tanAsinB)tanA(sinBcosC)

=0

Hence, option 'A' is correct.

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