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(1+ tan alpha tan beta)^(2) + (tan beta ...

`(1+ tan alpha tan beta)^(2) + (tan beta - tan beta)^(2)=`

A

`tan^(2) alpha tan^(2) beta`

B

`sec^(2) alpha + sec^(2) beta`

C

`sec^(2)alpha sec^(2)beta`

D

`tan^(2) alpha +tan^(2) beta`

Text Solution

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The correct Answer is:
C
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