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I : If ( 1+ tan A) (1+ tan B)=2 " then ...

I : If `( 1+ tan A) (1+ tan B)=2 " then " A+B=45^(@) or 225^(@) `
II : `sin^(2) theta + sin^(2) (60^(@) + theta ) + sin^(2) (60^(@) - theta ) = 3//2`

A

only I is true

B

only II is true

C

both I & II are true

D

neither I nor II are true

Text Solution

Verified by Experts

The correct Answer is:
A
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