প্রমাণ কর : $c o t^{- 1} \frac{5}{3} + s i n^{- 1} \frac{3}{5} = t a n^{- 1} \frac{27}{11}$

Created: 1 year ago | Updated: 1 year ago

Updated: 1 year ago

$L . S = c o t^{- 1} \frac{5}{3} + s i n^{- 1} \frac{3}{5}$

$= t a n^{- 1} \frac{3}{5} + t a n^{- 1} \frac{3}{4} = t a n^{- 1} (\frac{\frac{3}{5} + \frac{3}{4}}{1 - \frac{3 \times 3}{4 \times 5}})$

$= t a n^{- 1} \frac{27}{11} = R . S (Proved)$

1 year ago

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