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If tanA=a/(a+1) and tanB=1/(2a+1) then t...

If `tanA=a/(a+1)` and `tanB=1/(2a+1)` then the value of `A+B` is: (a).`0` (b). `pi/2` (c). `pi/3` (d). `pi/4`

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RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS OF COMPOUND ANGLES-All Questions
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