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Statement-I : If 0 lt alpha, beta lt pi/...

Statement-I : If `0 lt alpha, beta lt pi/4, sin alpha =a/sqrt(1+a^(2)), cos beta = b/sqrt(1+b^(2))`, then `tan (alpha + beta) = (a+b)/(a-b)`
Statement-II: If `tan(A + B)\m, tan(A-B) =n`, then `tan 2B =(m-n)/(m+n)`

A

Only I is true

B

Only II is true

C

Both I and II are true

D

Neither I nor II are true

Text Solution

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The correct Answer is:
D
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