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Question

The value of sin1.cos2.tan3.cot4.sec5.cosec6 is

A
Positive
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B
Negative
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C
Zero
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D
May be positive and Negative
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Solution

The correct option is A Negative

sin1=sin(firstquadrant+)=+vecos2=cos(secondquadrant+)=vetan3=tan(secondquadrant+)=vecot4=cot(thirdquadrant+)=+vesec5=sec(fourthquadrant+)=+vecosec6=cosec(forthquadrant+)=vehencetheirproduct=ve


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