Question

Determine:

A) senx =1/2

B)senα=√2/2

C)senα=1

D)cos α =√2/2

Answer 1

a)
$sen~x= \frac{1}{2}$

x=30°

b)
$sen \alpha = \frac{ \sqrt{2} }{2}$

α=45°

c)
$sen \alpha ~=1$

α=90°

d)
$cos \alpha ~= \frac{ \sqrt{2} }{2}$

α=45°