Question

In right angled D LMN, ÐLMN = 90°

ÐL = 50° and ÐN = 40°,

write the following ratios.

(i) sin 50° (ii) cos 50°

(iii) tan 40° (iv) cos 40°​

Answer 1

Step-by-step explanation:

HEY MATE .......

$\sin(50) \\ \\ = \frac{opposite \: side \: of \: < l}{h} \\ \\ = \frac{mn}{ln} \\ \\ \\ \cos(50) \\ \\ = \frac{adjacent \: side \: of \: < l}{h} \\ \\ = \frac{lm}{ln} \\ \\ \tan(40) \\ \\ = \frac{opposite \: side \: of \: < n}{adjacent \: side \: of \: < n} \\ \\ = \frac{lm}{mn} \\ \\ \cos(40) \\ \\ = \frac{adjacent \: side \: of \: < n}{h} \\ \\ = \frac{lm}{ln}$