Question

13. Find the value of sin 30° - cos 30°​

Answer 1

sin (30-90) - cos (30-90)

sin 60 - sin 60

sin =0

Answer 2

Answer:

$\sf \: sin \: 30° = \frac{1}{2}$

$\sf \: cos \: 30° = \frac{ \sqrt{3} }{2}$

• Putting the value of given T-ratios, we get

$\sf \: sin \: 30° - cos \: 30°$

$\sf \implies \: \frac{1}{2} - \frac{ \sqrt{3} }{2}$

$\sf \implies \: \frac{1 - \sqrt{3} }{2}$