1 টি উত্তর পাওয়া গেছে

Left Hand Side

$=\frac{sinA}{cosecA}+\frac{cosA}{secA}$

$=\left(\frac{sinA}{\frac{1}{sinA}}\right)+\left(\frac{cosA}{\frac{1}{cosA}}\right)$

$=\left(sinA \times \frac{sinA}{1}\right)+\left(cosA \times \frac{cosA}{1}\right)$

$=sin^2A +cos^2A$

$=1$

$=$ Right Hand Side

[ Proved ]

কমেন্টস

Rules Applied :

  • $cosec \theta = \frac{1}{sin \theta}$
  • $sec \theta = \frac{1}{cos \theta}$
  • $\sin^2 \theta +cos^2 \theta=1$