1 টি উত্তর পাওয়া গেছে

Left Hand Side

$=(tan\theta+sec\theta)^2$

$=\left(\frac{sin\theta}{cos\theta}+\frac{1}{cos\theta}\right)^2$

$=\left(\frac{sin\theta+1}{cos\theta}\right)^2$

$=\frac{(sin\theta+1)^2}{cos^2\theta}$

$=\frac{(1+sin\theta)^2}{1-sin^2\theta}$

$=\frac{(1+sin\theta)^2}{1^2-sin^2\theta}$

$=\frac{(1+sin\theta)(1+sin\theta)}{(1+sin\theta)(1-sin\theta)}$

$=\frac{1+sin\theta}{1-sin\theta}$

$=$ Right Hand Side

[ Proved ]

কমেন্টস

Rules Applied :

  • $a^2=a \cdot a$
  • $a^2-b^2=(a+b)(a-b)$