Question

Cos18/cos72
explain Karo iske value batao
aur Han aa line explain kariye​

Answer 1

$\huge{\mathcal{\blue{\underline{Answer}}}}$

$= \frac{ \cos(18) }{ \cos(72) } \\ = \frac{ \cos(90 - 18) }{ \cos(72) } \\ = \frac{ \sin(72) }{ \cos(72) } \\ </p><p></p><p>[tex]\huge{\mathcal{\green{\underline{Tan(72)}}}}$

hope it helps

Answer 2

Answer:

Tan72

Step-by-step explanation:

1. cos@=sin(90-@)
2. cos18/cos72=sin(90-18)/cos72
3. sin72/cos72
4. tan@=sin@/cos@
5. therefore, sin72/cos72=tan72
6. I have used @ instead of theta