Question

please solve this problem ​

Answer 1

$\sf\underbrace{\red{SOLUTION:-}}$

GIVEN :-

• $\bf{\cot{\theta}\:=\:{\dfrac{7}{8}}\:}$

CALCULATION :-

(i) $\bf{{\dfrac{(1+\sin{\theta})\:(1-\sin{\theta})}{(1+\cos{\theta})\:(1-\cos{\theta})}}\:}$

$= \frac{1 - { \sin^2 \theta } }{1 - { \cos^2 \theta } } \\ \\ = \frac{ { \cos^2 \theta } }{ { \sin^2 \theta } } \\ \\ = { \cot^2 \theta } \\ \\ = ({ \frac{7}{8} })^{2} \\ \\ = \frac{49}{64}$

(ii) $\bf{{\cot^2\theta}\:}$

$\bf{=\:({\dfrac{7}{8}})^2}$

$\bf{=\:\dfrac{49}{64}}$

Answer 2

Step-by-step explanation:

here it is..... and the second answer is easy