Is right-angled at

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

\Delta LMN

is right-angled at

N

. The sides containing the right angle measure

LN = 7\,\text{cm}

and

MN = 24\,\text{cm}

. Find

\cos L

, expressing your answer as a fraction in simplest form.