4) Fill in the trigonometric functions for angles N and L in triangle LQN, where Q is the right angle.

Решение:

Для треугольника LQN (угол Q = 90°):

• sin N = \(\frac{LQ}{LN}\)
• cos N = \(\frac{QN}{LN}\)
• tg N = \(\frac{LQ}{QN}\)
• sin L = \(\frac{QN}{LN}\)
• cos L = \(\frac{LQ}{LN}\)
• tg L = \(\frac{QN}{LQ}\)

Ответ: