माना $\cos (\alpha+\beta)=\frac{4}{5}$ और $\sin (\alpha-\beta)=\frac{5}{13},$ जहाँ $0 \leq \alpha, \beta \leq \frac{\pi}{4}$ तो $\tan 2 \alpha$ बराबर है
माना $\cos (\alpha+\beta)=\frac{4}{5}$ और $\sin (\alpha-\beta)=\frac{5}{13},$ जहाँ $0 \leq \alpha, \beta \leq \frac{\pi}{4}$ तो $\tan 2 \alpha$ बराबर है
- [AIEEE 2010]
- [IIT 1979]
- A
$\frac{{16}}{{63}}$
- B
$\frac{{56}}{{33}}$
- C
$\frac{{28}}{{33}}$
- D
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